# Highlights of Atomic, Molecular & Optical Physics (DAMOP) Talks @ APS 2020 March Meeting

American Physics Society (APS) March meeting is one of the largest physics meetings in the world. In 2020, the meeting was canceled due to concerns over the rapid spread of COVID-19.

To help the community quickly catch up on the work to be presented in this meeting, Paper Digest Team processed all talk abstracts, and generated one highlight sentence (typically the main topic) for each. Readers are encouraged to read these machine generated highlights / summaries to quickly get the main idea of each talk. This article is on the talks related to **Atomic, Molecular & Optical Physics (DAMOP)**.

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#### TABLE : Atomic, Molecular & Optical Physics (DAMOP)

Title | Authors | Highlight | Session | |
---|---|---|---|---|

1 | Rydberg physics for quantum computing in arrays of neutral atom qubits | King, Jonathan; Papageorge, Alexander; Hong, Sabrina; Notermans, Remy; Lester, Brian; Kondov, Stanimir; Kotru, Krish; McDonald, Mickey; Coxe, Robin; Sivarajah, Prasahnt; Bloom, Benjamin | To this end we discuss Rydberg interactions for quantum computing with trapped single atoms, including simulations of the full Hilbert space relevant to 2-qubit gates. | Session 1: Advances in AMO Quantum Information and Technologies |

2 | Robustness and sensitivity to imperfections in the dynamics of general observables within near-term quantum simulators | Poggi, Pablo; Lysne, Nathan; Kuper, Kevin; Jessen, Poul; Deutsch, Ivan | We analyze the robustness of analog quantum simulators in the presence of weak perturbations. | Session 1: Advances in AMO Quantum Information and Technologies |

3 | Sampling complexity of interacting bosonic random walkers on a lattice | Muraleedharan, Gopikrishnan; Ray, Sayonee; Chapman, Adrian; Miyake, Akimasa; Deutsch, Ivan | In a previous work, we studied this problem in the context of simulating boson sampling by noninteracting bosonic atoms on a one-dimensional lattice [1]. | Session 1: Advances in AMO Quantum Information and Technologies |

4 | Quantum amplification of boson-mediated interactions | Burd, Shaun; Srinivas, Raghavendra; Knaack, Hannah; Ge, Wenchao; Wilson, Andrew; Wineland, David; Leibfried, Dietrich; Bollinger, John; Allcock, David; Slichter, Daniel | General methods for amplifying these interactions through parametric driving of the boson channel have been proposed for a variety of quantum platforms, but an experimental demonstration has yet to be realized. | Session 1: Advances in AMO Quantum Information and Technologies |

5 | TDDFT potential inversion applied to spin systems on noisy quantum computers | Brown, James; Yang, Jun; Whitfield, James | In this talk, we discuss the application of this method to describing interacting spin systems (which can be implemented readily on quantum computers) as a non-interacting Kohn-Sham system. | Session 1: Advances in AMO Quantum Information and Technologies |

6 | Electric field in a two-dimensional time-multiplexed photonic quantum walk | Chalabi, Hamidreza; Barik, Sabyasachi; Mittal, Sunil; MURPHY, THOMAS E.; Hafezi, Mohammad; Waks, Edo | One approach to mimic the effect of electric fields is through the use of synthetic gauge fields. | Session 1: Advances in AMO Quantum Information and Technologies |

7 | Experimental few-copy multipartite entanglement detection | Saggio, Valeria; Dimić, Aleksandra; Greganti, Chiara; Rozema, Lee; Walther, Philip; Dakic, Borivoje | Recently, a single-shot probabilistic method was proposed [1], wherein it was shown that even a single detection event can be sufficient to verify if a state exhibits entanglement. | Session 1: Advances in AMO Quantum Information and Technologies |

8 | Deterministic Logic Gates for Photonic Qubits | Heuck, Mikkel; Jacobs, Kurt; Englund, Dirk | We propose a method that converts travelling continuous-mode photons into quasi-single mode fields by absorbing them into cavities. | Session 1: Advances in AMO Quantum Information and Technologies |

9 | Accelerating quantum optics experiments using statistical learning | Cortes, Cristian; Adhikari, Sushovit; Ma, Xuedan; Gray, Stephen | In this talk, we present a new methodology for accelerating such experiments using simple statistical learning techniques such as Bayesian maximum a posteriori estimation based on few-shot data. | Session 1: Advances in AMO Quantum Information and Technologies |

10 | Machine Learning Topological Phases with a Solid-State Quantum Simulator | Lian, Wenqian; Wang, Shengtao; Lu, Sirui; Zhang, Wengang; Ouyang, Xiaolong; Wang, Xin; Huang, Xianzhi; Deng, Dong-Ling; Duan, Luming | We report an experimental demonstration of a machine learning approach to identify exotic topological phases, with a focus on the three-dimensional chiral topological insulators. | Session 1: Advances in AMO Quantum Information and Technologies |

11 | Heralding High Fidelity Entanglement Between Imperfect Artificial Atoms | Choi, Hyeongrak; Englund, Dirk | Here, we address this problem through a new single-photon entanglement protocol that uses detuned optical coupling to spin-dependent optical transitions. | Session 1: Advances in AMO Quantum Information and Technologies |

12 | A Dielectric Antenna for Quantum Emitter Interfaces | Li, Linsen; Choi, Hyeongrak; Englund, Dirk | Here, we propose a method to design a dielectric antenna for low numerical aperture optics systematically. | Session 1: Advances in AMO Quantum Information and Technologies |

13 | Sub-kilohertz optical homogeneous linewidth in transparent Er3+:Y2O3 ceramics | Fukumori, Rikuto; Huang, Yizhong; Yang, Jun; Zhang, Haitao; Zhong, Tian | Temperature, field, and time dependence studies of homogeneous linewidth reveal the limiting dephasing mechanisms as tunneling two-level systems and superhyperfine interactions between the electronic spins of erbium and nuclear spins of yttrium. | Session 1: Advances in AMO Quantum Information and Technologies |

14 | Cavity nano-optics with configurable interaction: room temperature strong coupling of single emitter | May, Molly; Fialkow, David; Wu, Tong; Park, Kyoung-Duck; Leng, Haixu; Kropp, Jaron; Gougousi, Theodosia; Lalanne, Philippe; Pelton, Matthew; Raschke, Markus | Here we establish plasmonic tip-enhanced strong coupling (TESC) with a configurable nano-tip cavity to modulate and control the cavity-emitter interaction with sub-nanometer precision, quantify coupling strength exceeding ~160 meV, at mode volumes of < 10 -6 λ 3, augmented by theoretical modeling. | Session 1: Advances in AMO Quantum Information and Technologies |

15 | A cavity enhanced spin-photon interface for NV centers in a quantum network | Weaver, Matthew; Ruf, Maximilian; Pasini, Matteo; Eschen, Martin; Hanson, Ronald | To boost emission and collection, we construct a tunable Fabry-Pérot cavity around NV centers in a diamond membrane. | Session 1: Advances in AMO Quantum Information and Technologies |

16 | Trapped Ion Quantum Computing at Honeywell | Stutz, Russell | We will report recent progress on these and other fronts. | Session 2: Advances in Atomic Systems |

17 | Sandia’s Quantum Scientific Computing Open User Testbed (QSCOUT) | Yale, Christopher; Clark, Susan; Lobser, Daniel; Pehr, Jessica; Revelle, Melissa; Maunz, Peter | Here, we present the experimental development of QSCOUT, the current and anticipated capabilities of the testbed, as well as opportunities for use of this platform. | Session 2: Advances in Atomic Systems |

18 | Building a Logical Qubit-sized Ion Trap Quantum Information Processor | Risinger, Andrew; Goldman, Michael; Egan, Laird; Noel, Crystal; Zhu, Daiwei; Biswas, Debopriyo; Cetina, Marko; Monroe, Christopher | We present the system design and architecture of a trapped ion universal quantum processor with high-fidelity quantum gates and addressing of up to 32 qubits. | Session 2: Advances in Atomic Systems |

19 | Constructing Trapped Ion Quantum Computers | Brown, Kenneth | In this talk, I will discuss our experimental work at Duke towards constructing larger ion trap quantum systems. | Session 2: Advances in Atomic Systems |

20 | A compact room temperature trapped ion system | Aikyo, Yuhi; Vrijsen, Geert; Noel, Tom; Kim, Jungsang | In this work, we present a collaborative work between Duke University and ColdQuanta, where a compact ultra-high vacuum (UHV) chamber operating at room temperature was developed for a trapped ion system. | Session 2: Advances in Atomic Systems |

21 | A trapped ion system with integrated optics for logical quantum operations | Axline, Christopher; Mehta, Karan; Matt, Roland; Oswald, Robin; Decaroli, Chiara; Stolpmann, Leon; Home, Jonathan | We present designs for operation of multiple trapping zones that could be implemented and interfaced as logical qubits. | Session 2: Advances in Atomic Systems |

22 | Individual control of an array of neutral atom qubits for quantum computing | Lester, Brian; Hong, Sabrina; King, Jonathan; Kondov, Stanimir; Kotru, Krish; McDonald, Mickey; Notermans, Remy; Papageorge, Alexander; Coxe, Robin; Sivarajah, Prasahnt; Bloom, Benjamin | Here, we present initial results on the universal single-qubit control of an array of atomic qubits comprised of neutral strontium atoms. | Session 2: Advances in Atomic Systems |

23 | Integrated optical implementation of multi-ion quantum logic | Mehta, Karan; Zhang, Chi; Malinowski, Maciej; Nguyen, Thanh-Long; Stadler, Martin; Home, Jonathan | We have designed and implemented planar traps with integrated waveguides and grating couplers, for controlling multiple 40Ca+ ions. | Session 2: Advances in Atomic Systems |

24 | Efficient Arbitrary Simultaneously Entangling Gates on a trapped-ion quantum computer | Grzesiak, Nikodem; Blumel, Reinhold; Beck, Kristin; Wright, Kenneth; Chaplin, Vandiver; Amini, Jason; Pisenti, Neal; Debnath, Shantanu; Chen, Jwo-Sy; Nam, Yunseong | In this talk, I will present an exact, linear protocol that entangles multiple arbitrary pairs of trapped-ion qubits. | Session 2: Advances in Atomic Systems |

25 | Teleported CNOT Gate in a Mixed-Species Trapped-Ion System | Erickson, Stephen; Wan, Yong; Kienzler, Daniel; Mayer, Karl; Tan, Ting Rei; Wu, Jenny; Vasconcelos, Hilma; Glancy, Scott; Knill, Emanuel; Wineland, David; Wilson, Andrew; Leibfried, Dietrich | Quantum gate teleportation achieves this, requiring only local operations within each zone, a single entangled ancilla pair split between the two zones, and classical communication. | Session 2: Advances in Atomic Systems |

26 | Laser-free trapped-ion entangling gates with an oscillating magnetic-field gradient at radio frequency | Srinivas, Raghavendra; Burd, Shaun; Sutherland, Robert; Knaack, Hannah; Leibfried, Dietrich; Wineland, David; Wilson, Andrew; Allcock, David; Slichter, Daniel | We demonstrate a recently proposed method for trapped-ion entangling gates implemented using an oscillating magnetic-field gradient at radio frequency in addition to two microwave magnetic fields symmetrically detuned about the qubit frequency [1]. | Session 2: Advances in Atomic Systems |

27 | Quantum hopping of frequency-bin entangled photon pairs | Imany, Poolad; Lingaraju, Navin; Alshaykh, Mohammed; Leaird, Daniel; Weiner, Andrew | Quantum walks of entangled particles have promising applications in simulating many-body physics, as well as in implementing quantum search algorithms. | Session 2: Advances in Atomic Systems |

28 | Improved Light-Matter Interaction in a Thulium Cavity Memory for Quantum Light Storage | Davidson, Jacob; Lefebvre, Pascal; Zhang, Jun; Oblak, Daniel; Tittel, Wolfgang | We design and implement an atomic frequency comb quantum memory using a thulium-doped crystal in an impedance matched optical cavity to create absorption of more than 90% of input signal, resulting in a memory efficiency of 27%. | Session 2: Advances in Atomic Systems |

29 | Vortices in Rotating Bose-Einstein Condensate Shells | Padavic, Karmela; Sun, Kuei; Lannert, Courtney; Vishveshwara, Smitha | We present a study of superfluid vortices in rotating shell-shaped Bose-Einstein condensates (BECs). | Session 3: Artificial Gauge Fields, Spin-Orbit Coupling, and Optical Lattices |

30 | Dynamics of Quantum Gas in Non-Abelian Gauge Field | Hasan, Mehedi; Madasu, Chetan; Kwong, Chang; Chevy, Frédéric; Wilkowski, David | Dynamics of Quantum Gas in Non-Abelian Gauge Field | Session 3: Artificial Gauge Fields, Spin-Orbit Coupling, and Optical Lattices |

31 | Quantum simulation of Dynamical gauge field for ultra-cold atoms in a cavity | Ghosh, Sankalpa; Shakya, Poornima | In this work, we propose that ultra cold atoms in high finesse ring cavity of suitable geometry to create a non-uniform dynamical gauge field for neutral ultracold atom. | Session 3: Artificial Gauge Fields, Spin-Orbit Coupling, and Optical Lattices |

32 | Superfluidity and Bogoliubov excitations of a striped spin-orbit coupled BEC induced by a weak optical lattice | Li, Guanqiang; Luo, Xiwang; Hou, Junpeng; Zhang, Chuanwei | We investigate the ground-state superfluidity and Bogoliubov excitations of a striped spin-orbit coupled Bose-Einstein condensate (BEC) with the momentum-space hopping induced by a weak optical lattice. | Session 3: Artificial Gauge Fields, Spin-Orbit Coupling, and Optical Lattices |

33 | Optical Vortex Braiding in Composite Bessels | Voitiv, Andrew; Andersen, Jasmine; Siemens, Mark; Lusk, Mark | In this work, we present a theoretical proposition for braiding optical vortices in Bessel beams, along with analytical expressions for the braiding trajectories and braiding period. | Session 3: Artificial Gauge Fields, Spin-Orbit Coupling, and Optical Lattices |

34 | Spin Angular Momentum in Acoustic Field Theory | Burns, Lucas; Bliokh, Konstantin; Dressel, Justin | We construct a Lagrangian representation of acoustic field theory that accounts for the local radiation forces and torques experienced by subwavelength probe particles, analogous to those experienced by Rayleigh particles in optical fields. | Session 3: Artificial Gauge Fields, Spin-Orbit Coupling, and Optical Lattices |

35 | Bose-Einstein condensation in effective Harper-Hofstadter bands: simulations of synthetic magnetic fields by optical lattice shaking | Fu, Han; Setiawan, Fnu; Clark, Logan; Glatz, Andreas; Levin, Kathryn | In this talk we address these issues, and in the process provide advice for experimentalists in implementing these shaking recipes for arriving at a Hofstader BEC. | Session 3: Artificial Gauge Fields, Spin-Orbit Coupling, and Optical Lattices |

36 | Inhomogeneous mean-field approach for collective modes at the superfluid-Mott glass transition | Puschmann, Martin; Hoyos, Jose; Vojta, Thomas | We employ an inhomogeneous mean-field approach plus Gaussian fluctuations to investigate disordered Bose-Hubbard models with particle-hole symmetry in two and three dimensions. | Session 3: Artificial Gauge Fields, Spin-Orbit Coupling, and Optical Lattices |

37 | Realizing Z2 phases and Majorana Spectroscopy in extended Bose-Hubbard systems | Vishveshwara, Smitha; Weld, David | We describe a cold-atom realization of such a system in a biased zig-zag optical lattice. | Session 3: Artificial Gauge Fields, Spin-Orbit Coupling, and Optical Lattices |

38 | Dark states of multilevel fermionic atoms in doubly-filled optical lattices | Pineiro Orioli, Asier; Rey, Ana Maria | We propose to use fermionic atoms with degenerate ground and excited internal levels (F g→F e), loaded into the motional ground state of an optical lattice with two atoms per lattice site, to realize dark states with no radiative decay. | Session 3: Artificial Gauge Fields, Spin-Orbit Coupling, and Optical Lattices |

39 | Numerical study of antiferromagnetic nearest-neighbor spin correlations of an SU(6) Fermi gas in an optical lattice | Ibarra Garcia Padilla, Eduardo; Hazzard, Kaden; Scalettar, Richard; Wei, Hao-Tian; Taie, Shintaro; Nishizawa, Naoki; Takasu, Yosuke; Kuno, Yoshihito; Takahashi, Yoshiro | We have developed and applied the Exact Diagonalization and Determinant Quantum Monte Carlo methods to solve such model in all of the relevant geometries. | Session 3: Artificial Gauge Fields, Spin-Orbit Coupling, and Optical Lattices |

40 | Dynamics of an almost lattice gauge theory realized by an ultracold atom system | Gonzalez Cuadra, Daniel; Kasper, Valentin; Dauphin, Alexandre; Hauke, Philipp; Jendrzejewski, Fred; Lewenstein, Maciej | In this thesis we study the effect of terms violating the local gauge invariance as they occur in a typical experimental setup. | Session 3: Artificial Gauge Fields, Spin-Orbit Coupling, and Optical Lattices |

41 | Z2 Lattice Gauge System and Dynamical Localization | Yao, Zhiyuan; Liu, Chang; Zhang, Pengfei; Zhai, Hui | Using Floquet approach, we propose to realize a one-dimensional Z 2 lattice gauge model, featuring extensive local constants of motions, using two specifies of Rb atoms. | Session 3: Artificial Gauge Fields, Spin-Orbit Coupling, and Optical Lattices |

42 | Unusual superfluid behavior of population imbalanced atomic Fermi gases in a two-dimensional optical lattice | Sun, Lin; Chen, Qijin | We find that, in the presence of a finite population imbalance (p>0), the pair density at Tc unexpectedly approaches zero towards to deep BEC regime and thus the transition Tc is dramatically enhanced in the BEC regime and becomes proportional to the interaction strength $U$ in the BEC limit. | Session 3: Artificial Gauge Fields, Spin-Orbit Coupling, and Optical Lattices |

43 | Preparing for exascale: additive manufacturing process modeling at the fidelity of the microstructure | Belak, James | Here, we present an overview of the motifs of computational materials science, from the “particles” using by molecular dynamics to the “grids” using by phase-field models and the various solution algorithms such as FFTs. | Session 4: Building the Bridge to Exascale: Applications and Opportunities for Materials, Chemistry, and Biology |

44 | Enabling First Principles Multiscale-Multiphysics Simulations of Complex Thermo-Fluid Systems Through Exascale Computing | Oefelein, Joseph; Schau, Kyle; Sankaran, Ramanan | This presentation will highlight the inherent challenges associated with porting complex multiphysics solvers to these architectures and the approach taken to achieve optimal performance using the RAPTOR code framework developed by Oefelein et al. as an example application. | Session 4: Building the Bridge to Exascale: Applications and Opportunities for Materials, Chemistry, and Biology |

45 | Generating a Comprehensive Map of Cancer Morphology in Whole Slide Tissue Specimens | Saltz, Joel; Gupta, Raj; Samaras, Dimitris; Hou, Le; Le, Han; Abousamra, Shahira; Batiste, Rebecca; Zhao, Tianhao; Zhang, Jingwei; Chen, Chao; Kurc, Tahsin | Advanced imaging technologies can capture extremely high-resolution images of tissue specimens, and quantitative analyses of cancer morphology using these images have shown value in a variety of correlative and prognostic studies. | Session 4: Building the Bridge to Exascale: Applications and Opportunities for Materials, Chemistry, and Biology |

46 | Operator Dynamics in Quantum Circuits with Subsystem Symmetry | Iaconis, Jason; Vijay, Sagar; Nandkishore, Rahul | I will discuss approaches we may take to simulate such quantum dynamics numerically in higher dimensional systems. | |

47 | Radiation-matter interaction in graphene molecules: implementation on Geant 4 and computational simulations | Vidal, Carlos; Prias, John; Ariza, Hernando | A method for computational reconstruction of UV-Vis spectra was proposed. | |

48 | ExaTN – A Scalable Exascale Math Library for Hierarchical Tensor Network Representations and Simulations in Quantum Many-Body Theory and Beyond | Liakh, Dmitry; Dumitrescu, Eugen; Alvarez, Gonzalo; Mintz, Tiffany; McCaskey, Alexander | To address this need, we develop ExaTN: A scalable math library for processing hierarchical tensor representations. | |

49 | Porting ITensor to Julia | Fishman, Matthew; Hyatt, Katharine; Stoudenmire, Miles | In this talk, we present ITensors.jl, a ground-up rewrite of the C++ ITensor library in Julia. | |

50 | Breaking the entanglement barrier: Tensor network simulation of quantum transport | Zwolak, Michael; Rams, Marek | Here, we show that for quantum transport – one of the most important cases of this failure – the fundamental issue is the canonical basis in which the scenario is cast: When particles flow through an interface, they scatter, generating a "bit" of entanglement between spatial regions with each event. | |

51 | Accelerate Science on Perlmutter with NERSC | Yang, Charlene; Deslippe, Jack | This talk will give an overview of its architectural details and discuss what Perlmutter can offer to the scientific community especially to Material Science and Chemistry. | |

52 | Central Moment Lattice Boltzmann Method with Fokker-Planck Guided Collision for Non-Equilibrium Flows | Schupbach, William; Premnath, Kannan; Hajabdollahi, Farzaneh | We propose a central moment LBM from a different perspective, where its collision operator is constructed by matching the changes in different discrete central moments under collision to the changes in the corresponding continuous central moments as given by the Fokker-Planck (FP) collision model of the Boltzmann equation. | |

53 | Nonlocal Coulomb interaction and spin freezing crossover: A route to valence-skipping charge order | Ryee, Siheon; Sémon, P.; Han, Myung Joon; Choi, Sangkook | Here we study a three-orbital model with 1/3 filling (two electrons per site) including the intersite Coulomb interaction V. Using the GW plus extended dynamical mean-field theory, the valence-skipping charge order transition is shown to be driven by V. Most interestingly, the instability to this transition is significantly enhanced in the spin-freezing crossover regime, thereby lowering the critical V to the formation of charge order. | |

54 | Improved methods for demonstrating that AKLT systems are gapped | Pomata, Nicholas; Wei, Tzu-Chieh | We examine recent advancements in proving the gaps of AKLT systems [1,2], in particular those proposed by Abdul-Rahman et al. [1], which we have later extended so that it can be applied numerically in more general settings. | |

55 | Accelerating Large-Scale GW Calculations on Hybrid GPU-CPU Systems | Del Ben, Mauro; Yang, Charlene; Louie, Steven; Deslippe, Jack | This talk showcases the various techniques used to accelerate the Material Science code BerkeleyGW on hybrid architectures targeting to accelerate large scale simulations with thousands of atoms. | Session 5: Building the bridge to exascale: applications and opportunities for materials, chemistry, and biology |

56 | Accuracy limits of quantum Monte Carlo in the weak-interaction limit | Fanta, Roman; Dubecky, Matus | Accuracy limits of quantum Monte Carlo in the weak-interaction limit | Session 5: Building the bridge to exascale: applications and opportunities for materials, chemistry, and biology |

57 | Simulating realistic features of chemical and materials systems with massively parallel many-body perturbation theory calculations | Vigil-Fowler, Derek; Clary, Jacob; Musgrave, Charles; Holder, Aaron | In this talk we will discuss our work on simulating the electrochemical oxygen reduction reaction (ORR) on a system of FeN 4clusters in graphene using the many-body random phase approximation (RPA) and including the effects of zero-point energy, vibrational entropy, solvation, and applied bias. | Session 5: Building the bridge to exascale: applications and opportunities for materials, chemistry, and biology |

58 | Large temperature sensitivity of optical emission via synergy of Raman and photoluminescence effects in BaTiO3-based phosphor | DE, ARNAB; Ranjan, Rajeev | Here we propose a new strategy for achieving high temperature sensitivity by considering a twin combination of Raman and PL spectrum of the phosphor material, and by introducing Raman-PL-intensity ratio ( RPIR) as a parameter for measuring relative temperature sensitivity( Sr). | |

59 | NWChemEx – Computational Chemistry for the Exascale Era | van Dam, Hubertus; Apra, Edoardo; Bair, Raymond; Boschen, Jeffery; Bylaska, Eric; De Jong, Wibe; Dunning, Thomas; Govind, Niranjan; Harrison, Robert; Keipert, Kristopher; Kowalski, Karol; Krishnamoorthy, Sriram; Kumar, Suraj; Mutlu, Erdal; Palmer, Bruce; Panyala, Ajay; Peng, Bo; Richard, Ryan; Straatsma, T; Valeev, Edward; Valiev, Marat; Williams-Young, David; Yang, Chao; Windus, Theresa | We focus on overcoming the limitations of NWChem’s design. | |

60 | Accessible and collaborative web interface for HPC materials simulations | Bazhirov, Timur | We outline the concept for the creation of a web-enabled infrastructure for predictive theory and modeling [2] able to facilitate access to, coordination and sharing of information and data produced by scalable codes adapted for exascale computing. | |

61 | Large-scale many-body perturbation theory calculations on leadership class facilities | Govoni, Marco; Ma, He; Gygi, Francois; Galli, Giulia | We will present new functionalities enabled by the concurrent use of WEST and the Qbox code [http://qboxcode.org], with focus on interoperability paradigms. | |

62 | Electronic density and atomic forces in solids by plane-wave auxiliary-field quantum Monte Carlo | Chen, Siyuan; Motta, Mario; Ma, Fengjie; Zhang, Shiwei | We present accurate electronic densities for several prototypical solids, including the ionic crystal NaCl, covalent-bond semiconductor Si, and metalic Cu. | |

63 | A pseudo-BCS wavefunction from density matrix decomposition – application in auxilary-field quantum Monte Carlo | Xiao, Zhi-Yu; Shi, Hao; Zhang, Shiwei | We present a method to construct BCS-like (pseudo-BCS) wave functions from the one-body density matrix. | |

64 | Electronic band gaps from Quantum Monte Carlo methods | Yang, Yubo; Gorelov, Vitaly; PIERLEONI, CARLO; Ceperley, David; Holzmann, Markus | We develop a method for calculating the fundamental electronic gap of semiconductors and insulators using grand canonical Quantum Monte Carlo simulations. | |

65 | RuCl3 electronic structure by quantum Monte Carlo | Annaberdiyev, Abdulgani; Melton, Cody; Clay, Raymond; Shulenburger, Luke; Wang, Guangming; Mitas, Lubos | In particular, we attempt to understand the role of electron correlations as they affect the ground and excited states. | |

66 | Heavy-atom systems in quantum Monte Carlo: pseudopotentials and beyond | Wang, Guangming; Annaberdiyev, Abdulgani; Melton, Cody; Bennett, Michael; Shulenburger, Luke; Mitas, Lubos | We study the electronic structure of selected systems with heavy atoms such as Ru, Ir, Pb, Bi and I, using quantum Monte Carlo (QMC). | |

67 | Mitigating the Sign Problem Through Basis Rotations | Levy, Ryan; Clark, Bryan | In this talk, we show how to use sign-free quantum Monte Carlo simulations to minimize the effect of the sign problem by optimizing over the choice of basis on large two-dimensional systems. | |

68 | Towards Exascale Electronic Structure and Quantum Transport Calculations | Bernholc, Jerry | We have developed an open-source code that discretizes the DFT equations on real-space grids that are distributed over the nodes of a massively parallel system via domain decomposition. | |

69 | Towards first-principles design of quantum devices | Jakowski, Jacek; Bernholc, Jerry; Yoon, Mina; Lingerfelt, David; Lu, Wenchang; Briggs, Emil | We discuss the implementation of time-dependent electron dynamics in the real-space multigrid (RMG) density functional theory software package. | |

70 | GPU-Acceleration of the ELPA2 Distributed Eigensolver for Applications in Electronic Structure Theory | Yu, Victor; Moussa, Jonathan; Blum, Volker | We here present GPU-oriented optimizations of the ELPA two-stage tridiagonalization eigensolver (ELPA2). | |

71 | Driving exascale computational science with AiiDA | Huber, Sebastiaan; Pizzi, Giovanni; Marzari, Nicola | Therefore, we have developed a comprehensive, robust, open source, high-throughput infrastructure AiiDA (http://aiida.net) dedicated to address the challenges in automated workflow management and data provenance storage. | |

72 | DMFTwDFT: A free-license DMFT package interfaced with various DFT implementations | Park, Hyowon; Singh, Vijay; Herath, Uthpala; Wah, Benny; Liao, Xingyu; Romero, Aldo | In this talk, we present an open-source computational package (DMFTwDFT) combining DMFT with various DFT codes interfaced to a Wannier90 package for adopting maximally localized Wannier functions as local orbitals to describe a correlated subspace. | |

73 | Scaling and Performance of Real-Space Electronic Structure Calculations on Exascale Architectures | Briggs, Emil; Lu, Wenchang; Bernholc, Jerry | We will discuss efficient and scalable implementation of distributed data flow and key electronic structure algorithms on exascale class machines in RMG, as well as methods for addressing MPI scalability constraints and data bottlenecks. | |

74 | From LSMS to MuST: Large scale first principles materials calculations at the exascale | Eisenbach, Markus; Liu, Xianglin; Odbadrakh, Khorgolkhuu; Wang, Yang | We present recent advances in our Locally-selfconsistent Multiple Scattering (LSMS) code for scalable first principles density functional calculations of materials. | |

75 | Mixed precision sampling of quantum states of matter | Maier, Thomas; Balduzzi, Giovanni; Haehner, Urs; Li, Ying Wai; Chatterjee, Arghya; D’Azevedo, Ed | In materials science, they provide an important framework to unravel the mechanisms that give rise to complex behavior and different quantum states of matter. | |

76 | Towards finite-temperature tensor network simulations of the two-dimensional Hubbard model | Wietek, Alexander; Stoudenmire, Miles | We demonstrate how the METTS algorithm in combination with modern time-evolution algorithms for matrix-product states, like the time-dependent variational principle (TDVP) method, allows simulating the Hubbard model at finite temperature for cylinder geometries approaching the two-dimensional limit. | |

77 | Comparison of systematically improvable DMC and AFQMC for condensed matter | Benali, Anouar; Malone, Fionn; Morales, Miguel; Shulenburger, Luke | In this work we assess the cost and feasibility of determining exact total energies for solid state Hamiltonians by studying primitive cells of four representative materials, Al, LiF, C and TiO2. | |

78 | Quantum Monte Carlo with orbital optimization applied on solids | Luo, Ye | Thus, we enable orbital optimization schemes like mixing occupied and unoccupied orbitals or directly optimizing orbital shapes and study their strength and weakness on solid state systems. | |

79 | Auxiliary-Field Quantum Monte Carlo Applied to Correlated Materials | Malone, Fionn; Lee, Joonho; Zhang, Shuai; Morales, Miguel | In this talk we investigate the application of auxiliary-field quantum Monte Carlo (AFQMC) to correlated materials. | |

80 | Magnetic and charge orders in the ground state of the 2D repulsive Hubbard model | Xu, Hao; Qin, Mingpu; Shi, Hao; He, Yuan-Yao; Zhang, Shiwei | Using the auxiliary field quantum Monte-Carlo (AFQMC) method combined with a self-consistent constraint [1], we systematically study the ground state of the two-dimensional repulsive Hubbard model as a function of doping and interaction strengths. | |

81 | Many-body delocalization of ultracold bosons in lattices | Groß, Christian | Here we present our recent results on the study of the stability of the localization in 2d bosonic lattice systems. | Session 6: Disorder and Localization in AMO Systems |

82 | Instability of subdiffusive spin dynamics in strongly disordered Hubbard chain | Sroda, Maksymilian; Prelovsek, Peter; Mierzejewski, Marcin | To this end, we derive an effective spin model where the spin subdiffusion is shown to be destroyed by arbitrarily weak t ↑ ≠ t ↓. | Session 6: Disorder and Localization in AMO Systems |

83 | Many-body localization from a one-particle perspective in the disordered 1D Bose-Hubbard model | Hopjan, Miroslav; Heidrich-Meisner, Fabian | We numerically investigate 1D Bose-Hubbard chains with onsite disorder by means of exact diagonalization. | Session 6: Disorder and Localization in AMO Systems |

84 | Localization dynamics in a centrally coupled system | Ng, Nathan; Seelam, Rajagopala; Wenderoth, Sebastian; Kolodrubetz, Michael; Rabani, Eran; Thoss, Michael | We investigate a disordered Ising chain in which all spins couple to a central qudit, through which spin flip interactions are mediated. | Session 6: Disorder and Localization in AMO Systems |

85 | Strongly resonating clusters around the ergodic-MBL transition | Villalonga, Benjamin; Clark, Bryan | Here, we argue that the transition between both behaviors is accompanied by the formation of resonating clusters in the eigenstates of the Hamiltonian. | Session 6: Disorder and Localization in AMO Systems |

86 | Inverted many-body mobility edge in a central qudit problem | Rahmanian Koshkaki, Saeed; Kolodrubetz, Michael | In this work, we study the dependence of MBL on energy. | Session 6: Disorder and Localization in AMO Systems |

87 | Emergent ergodicity at the transition between many-body localized phases | Sahay, Rahul; Ye, Bingtian; Machado, Francisco; Yao, Norman | Here, we present evidence that, indeed, a direct transition between different MBL phases cannot occur, and between any two MBL phases, an intervening finite-width thermalizing phase emerges. | Session 6: Disorder and Localization in AMO Systems |

88 | Critical properties of the many-body Aubry-Andre model localization-delocalization transition. | Cookmeyer, Taylor; Motruk, Johannes; Moore, Joel | We investigate the many-particle localization-delocalization transition in the Aubry-Andre model with and without interactions. | Session 6: Disorder and Localization in AMO Systems |

89 | Single doublons as ergodic bubbles | Krause, Ulrich; Pellegrin, Théo; Brouwer, Piet; Abanin, Dmitry; Filippone, Michele | We provide analytical estimates showing how the critical disorder strength for such mechanism depends on singlon densities, which are nicely supported by numerical exact-diagonalization simulations. | Session 6: Disorder and Localization in AMO Systems |

90 | Quasi-1D limit of the integer quantum Hall transition as a disordered Thouless pump | Ippoliti, Matteo; Bhatt, Ravindra | We study the quantum Hall plateau transition on rectangular tori. | Session 6: Disorder and Localization in AMO Systems |

91 | Spin transport in disordered long-range interacting spin chain | Kloss, Benedikt; Bar Lev, Yevgeny | We numerically study spin transport and spin-density profiles after a local quench in a disordered one-dimensional spin-chain with long-range interactions, in the regime where delocalization is predicted by all existing theories. | Session 6: Disorder and Localization in AMO Systems |

92 | Complex network description of phase transitions in the classical and quantum disordered Ising Model | Fasihi, Mina; Cole, Haley; Carr, Lincoln; Garcia Perez, Guillermo; Maniscalco, Sabrina | In this study, the spin-spin correlations at different temperatures are analytically calculated, yielding phase-dependent complex networks, from simple networks in the low temperature ferromagnetic limit to random ones at high temperature. | Session 6: Disorder and Localization in AMO Systems |

93 | Probing Slow Scrambling in MBL and the Random Singlet Phase | MacCormack, Ian; Tan, Mao-Tian; Kudler-Flam, Jonah; Ryu, Shinsei | We characterize the spreading of operators and entanglement in two paradigmatic non-thermalizing phases – the many body localized phase and the random singlet phase – using out-of-time-ordered correlators, the entanglement contour, and operator entanglement. | Session 6: Disorder and Localization in AMO Systems |

94 | Theory of non-Hermitian fermionic superfluidity subject to inelastic collisions in ultracold atoms | Yamamoto, Kazuki; Nakagawa, Masaya; Adachi, Kyosuke; Takasan, Kazuaki; Ueda, Masahito; Kawakami, Norio | We develop a mean-field theory to obtain a NH gap equation for order parameters, which are similar to but different from the standard BCS ones because of the inequivalence of left and right eigenstates in the NH physics. | Session 7: Dissipative and Far-From-Equilibrium Quantum Dynamics in AMO Systems |

95 | The Threefold Way in Non-Hermitian Random Matrices | Hamazaki, Ryusuke; Kawabata, Kohei; Kura, Naoto; Ueda, Masahito | In this talk, we report our discovery of two distinct universality classes characterized by transposition symmetry [1]. | Session 7: Dissipative and Far-From-Equilibrium Quantum Dynamics in AMO Systems |

96 | The property of open quantum system and nonhermiticity in strongly-correlated electron system | Michishita, Yoshihiro; PETERS, Robert | In this paper, we prove that the ENH in each context, OQS and SCES, corresponds to each other and clarify why the post selection is not necessary in SCES by treating the model in SCES as in OQS. | Session 7: Dissipative and Far-From-Equilibrium Quantum Dynamics in AMO Systems |

97 | Dissipative quantum Ising chain as a non-Hermitian Ashkin-Teller model | Shibata, Naoyuki; Katsura, Hosho | In this talk, we construct a solvable example of a quantum Ising model with bulk dissipation [1]. | Session 7: Dissipative and Far-From-Equilibrium Quantum Dynamics in AMO Systems |

98 | Effects of dipole-dipole interaction in atomic vapors probed by two-dimensional coherent spectroscopy | Liang, Danfu; Yu, Shaogang; Zhu, Yifu; Liu, Xiaojun; Li, Hebin | We implemented photon-echo, 1Q-2Q and double-quantum optical 2DCS to probe the effect of DDIs in the rubidium atomic vapor. | Session 7: Dissipative and Far-From-Equilibrium Quantum Dynamics in AMO Systems |

99 | Effects of a dissipative coupling to the momentum of a particle in a double well potential | Maile, Dominik; Andergassen, Sabine; Rastelli, Gianluca | Here we present a study of the coherent tunneling in a parabolic double well potential in presence of different dissipative interactions. | Session 7: Dissipative and Far-From-Equilibrium Quantum Dynamics in AMO Systems |

100 | Symmetry Breaking and Phase Transition in a Driven-Dissipative Kerr Oscillator | Zhang, X. H. H.; Baranger, Harold | We show that quantum many-body effects can appear in a single non-linear oscillator that is driven by an external field in the presence of dissipation. | Session 7: Dissipative and Far-From-Equilibrium Quantum Dynamics in AMO Systems |

101 | Open quantum systems approach to Bose polaron problems with applications | Garcia-March, Miguel; Mehboudi, Mohammad; Charalambous, Christos; Lampo, Aniello; Correa, Luis; Lewenstein, Maciej | We discuss the dynamics of one and two quantum impurities immersed in a homogeneous or trapped Bose-Einstein condensate (BEC) in the framework of the quantum Brownian motion model [1-4]. | Session 7: Dissipative and Far-From-Equilibrium Quantum Dynamics in AMO Systems |

102 | Universality in the decay and evival of Loschmidt Echoes | Hwang, Myung-Joong; Wei, Bo-Bo; Huelga, Susana; Plenio, Martin | In this contribution, we present the dynamical scaling laws that govern the decay and revival of the Loschmidt echo completely characgterised by equilibrium critical exponents of a critical point. | Session 7: Dissipative and Far-From-Equilibrium Quantum Dynamics in AMO Systems |

103 | Analytical Study of Decoherence in Rydberg Atom Qubits | Kale, Anant; Endres, Manuel | Here we present an analytical (perturbative) expression for the effect of these noise sources on the rabi oscillations of a single atom and a pair of atoms in the Rydberg blockade regime. | Session 7: Dissipative and Far-From-Equilibrium Quantum Dynamics in AMO Systems |

104 | Non-Hermitian topological light steering | Zhao, Han; Qiao, Xingdu; Wu, Tianwei; Midya, Bikashkali; Longhi, Stefano; Feng, Liang | By strategically interfacing non-Hermitian and topological physics, we demonstrate arbitrary, robust light steering in reconfigurable non-Hermitian junctions, in which chiral topological states can propagate at an interface of the gain and loss domains. | Session 7: Dissipative and Far-From-Equilibrium Quantum Dynamics in AMO Systems |

105 | Quantum Quenches in Coupled Luttinger Liquids: Truncated Spectrum Approach vs Semi-Classics | Konik, Robert; James, Andrew; Hallam, Andrew | We argue that this difference is real through unitary perturbation theory which is exact at short times. | Session 7: Dissipative and Far-From-Equilibrium Quantum Dynamics in AMO Systems |

106 | Non-equilibrium dynamics of the Pokrovsky-Talapov model | Kasper, Valentin; Marino, Jamir; Ji, Sicong; Schmiedmayer, Joerg; Demler, Eugene | In this work we study the non-equilibrium physics of the Pokrovsky-Talapov model which is effectively realized by two Raman tunnel-coupled one-dimensional Bose gases. | Session 7: Dissipative and Far-From-Equilibrium Quantum Dynamics in AMO Systems |

107 | New exact eigenstates in the Lesanovsky model, proximity to integrability and the PXP model, and approximate scar states | Mark, Daniel; Lin, Cheng-Ju; Motrunich, Olexei | The PXP model describes a recent experiment that observed unusual revivals from a charge density wave initial state, which are attributed to a set of many-body "scar states" which do not obey the eigenstate thermalization hypothesis. | Session 7: Dissipative and Far-From-Equilibrium Quantum Dynamics in AMO Systems |

108 | Investigating the Energy Transfer Dynamics in the Baseplate of Green Photosynthetic Bacteria using 2D Electronic Spectroscopy | Carollo, Alexa; Goodson, Carrie; Blankenship, Robert; Frigaard, Niels-Ulrik; Zigmantas, Donatas | In this work, 2D spectra of the baseplate in a mutant of Chlorobaculum tepidum, which was previously found to contain dimeric pigments[2], will be compared to 2D spectra of Chloroflexus aurantiacus to characterize the pigment interactions and energy transfer pathways in both samples. | Session 8: Electronic-Vibrational Coupling in Light Harvesting I. Photosynthetic Light Harvesting |

109 | Probing quantum coherence in photosynthetic energy transfer in the presence of fluctuating environment with levitons and time-dependent nonequilibrium Green functions | Mondal, Priyanka; Nikolic, Branislav; Eisfeld, Alexander | Here we present a prototype that uses a leviton voltage pulse to map a single exciton entering Fenna-Matthews-Olson pigment complex which is mapped as coupled quantum dots with attached leads, in presence of environmental fluctuation coming from molecular dynamics simulation. | Session 8: Electronic-Vibrational Coupling in Light Harvesting I. Photosynthetic Light Harvesting |

110 | Exploring electronic-vibrational coupling in chlorophylls and photosynthetic complexes by polarization-controlled 2D electronic spectroscopy | Zigmantas, Donatas; Bukarte, Egle; Thyrhaug, Erling; Palecek, David; Tempelaar, Roel; Haufe, Anja; Alcocer, Marcelo; Zidek, Karel; La Cour Jansen, Thomas; Bina, David; Knoester, Jasper; Büchel, Claudia | To this end we have employed polarization-controlled 2DES together with advanced Fourier analysis [1]. | Session 8: Electronic-Vibrational Coupling in Light Harvesting I. Photosynthetic Light Harvesting |

111 | Matrix-product-state-based calculations of exciton-phonon dynamics for light-harvesting complexes | Kessing, R. Kevin; Manmana, Salvatore; Cao, Jianshu | Using this accurate, unbiased method, we focus on studying spreading, coherence and entanglement behavior. | Session 8: Electronic-Vibrational Coupling in Light Harvesting I. Photosynthetic Light Harvesting |

112 | Vibronic Structure and Coherence in the Bacterial Reaction Center | Ogilvie, Jennifer; Policht, Veronica | Through analysis of the coherent dynamics of the BRC and careful comparison with monomeric bacteriochlorophyll we report vibronic coherence and identify resonances between a number of key intramolecular pigment vibrations and electronic energy gaps in the BRC. | Session 8: Electronic-Vibrational Coupling in Light Harvesting I. Photosynthetic Light Harvesting |

113 | Modeling Exciton Transport in the Photosystem II Reaction Center via the Modified Generalized Quantum Master Equation | Lenn, Kristina; Mulvihill, Ellen; Gao, Xing; Schubert, Alexander; Geva, Eitan | To do this, we have employed a projection-free version of the Generalized Quantum Master Equation (GQME) whose memory kernel is calculated using approximate methods, such as the Mean-Field Approximation (MFA) and the Linearized Semiclassical Method (LSC). | Session 8: Electronic-Vibrational Coupling in Light Harvesting I. Photosynthetic Light Harvesting |

114 | The Coherence Time of Sunlight | Ricketti, Berke; Gauger, Erik; Fedrizzi, Alessandro | Here we revisit the historic calculations of sunlight coherence starting with the blackbody spectrum and then proceed to provide values for the more realistic case of atmospherically filtered light. | Session 8: Electronic-Vibrational Coupling in Light Harvesting I. Photosynthetic Light Harvesting |

115 | Quantum coherence in a photosynthetic dimer driven by incoherent sunlight | Yang, Pei-Yun; Cao, Jianshu | In this work, we demonstrate noise-induced coherence in a model of a photosynthetic molecular dimer driven by an incoherent radiation field. | Session 8: Electronic-Vibrational Coupling in Light Harvesting I. Photosynthetic Light Harvesting |

116 | Carotenoid-mediated light harvesting in plants Minjung Son, Gabriela Schlau-Cohen | Schlau-Cohen, Gabriela; Son, Minjung | We describe ultrabroadband 2D electronic spectroscopy that enables us to map out the excited states and dynamics of the major antenna complex of plants across the visible region. | Session 8: Electronic-Vibrational Coupling in Light Harvesting I. Photosynthetic Light Harvesting |

117 | Excitons and Polarons in Organic Materials | Spano, Frank; Ghosh, Raja | In this talk the photophysical properties of excitons and polarons in conjugated organic materials are compared and contrasted within the framework of a theory based on the Holstein Hamiltonian, which treats local electron-vibrational coupling exactly. | Session 9: Electronic-Vibrational Coupling in Light Harvesting II. Excitons, Polarons, Perovskites, and Non-Adiabatic Dynamics |

118 | Spectral Signatures and Spatial Coherence of Bound and Unbound Polarons in Organic Semiconductors: Theory vs Experiment | Ghosh, Raja; Luscombe, Christine; Alberto, Salleo; Spano, Frank | Using a theory based on the Holstein Hamiltonian for mobile holes in P3HT, the IR line-shape is successfully reproduced for several recently measured spectra recorded in doped and undoped films, confirming the association of an enhanced peak ratio (A/B) with extended polaron coherence. | Session 9: Electronic-Vibrational Coupling in Light Harvesting II. Excitons, Polarons, Perovskites, and Non-Adiabatic Dynamics |

119 | Correlating Structure and Function in Two-Dimensional Organic-Inorganic Hybrid Perovskites | Kagan, Cherie; Straus, Daniel; Hurtado Parra, Sebastian; Zhao, Qinghua; Kikkawa, James | We study 2DHPs containing single lead iodide layers separated by intervening substituted, phenethylammonium cations with the chemical structure (x-PEA) 2PbI 4, where x=F, Cl, Br, or CH 3. | Session 9: Electronic-Vibrational Coupling in Light Harvesting II. Excitons, Polarons, Perovskites, and Non-Adiabatic Dynamics |

120 | Investigating how biological membrane parameters influence the ring opening of Provitamin D | Sofferman, Danielle; Sension, Roseanne | Here we are studying DHC and its analogs in lipid bilayers as a simple model for biologically relevant skin membrane models. | |

121 | Superradiance of two-dimensional molecular aggregates | Eisfeld, Alex | In this talk I will discuss the superradiant emission of organic molecules arranged on dielectric surfaces. | |

122 | Resonant confinement of an excitonic polariton and ultra-efficient light harvest in artificial photosynthesis | CHEN, Yong-Cong; Song, Bo; Leggett, Anthony; Ao, Ping; Zhu, Xiaomei | Resonant confinement of an excitonic polariton and ultra-efficient light harvest in artificial photosynthesis | |

123 | Semiconductor Junctions for Photon Up and Downconversion: From Nanocrystals to Bulk Solids | Raulerson, Emily; Lee, Inki; Pollok, Brittany; Bender, Jon; Cotton, Daniel; Roberts, Sean | In this presentation, I will review our group’s efforts to produce covalently tethered structures for this purpose. | Session 10: Electronic-Vibrational Coupling in Light Harvesting III. Singlet Fission, Upconversion, and Energy Transfer |

124 | Efficient Triplet Harvesting in an Air-stable Diketopyrrolopyrrole Singlet Fission Solar Cell | Levine, Andrew; Hammer, Joseph; Blain, Saul; HOQUE, MAJHARUL; Narang, Vishal; Braunschweig, Adam; Begliarbekov, Milan | Efficient Triplet Harvesting in an Air-stable Diketopyrrolopyrrole Singlet Fission Solar Cell | Session 10: Electronic-Vibrational Coupling in Light Harvesting III. Singlet Fission, Upconversion, and Energy Transfer |

125 | A Kinetic Description of Ultrafast Excitation, Relaxation, and Charge Transfer in Ru Dye-Semiconductor Systems | Cheshire, Thomas; Boodry, Jeb; Brennaman, M; Giokas, Paul; Zigler, David; Moran, Andrew; Papanikolas, John; Meyer, Gerald; Meyer, Thomas; Houle, Frances | We describe a predictive kinetic framework for ultrafast photophysics of ruthenium polypyridyl dyes in solution and on solid surfaces to probe how kinetic processes such as absorption, relaxation, and intersystem crossing affect excited state lifetimes. | Session 10: Electronic-Vibrational Coupling in Light Harvesting III. Singlet Fission, Upconversion, and Energy Transfer |

126 | Fast algorithm for simulating nonlinear ultrafast spectroscopies | Rose, Peter; Krich, Jacob | We present Ultrafast Ultrafast (UF 2) spectroscopy, a fast algorithm for calculating perturbative n-wave mixing signals in nonlinear optical spectroscopies including arbitrary optical pulse shapes and overlaps. | |

127 | Enhancing vibrationally assisted energy transfer via vibrational cooperativity and interference | Li, Zengzhao; Ko, Liwen; Yang, Zhibo; Sarovar, Mohan; Whaley, Birgitta | Motivated by this demonstration, we investigate how cooperativity and interference of multiple vibrations enhance energy transfer. | |

128 | Electrochemical tuning Localized Surface Plasmon Resonance of Au-Ag core-shell nanoparticle for Surface-Enhanced Raman Scattering | Guo, Jing; Li, Eugene; He, Jin | Electrochemical tuning Localized Surface Plasmon Resonance of Au-Ag core-shell nanoparticle for Surface-Enhanced Raman Scattering | |

129 | Phonon-induced Spin State Relaxation in spin crossover molecule | Park, Haechan; Cheng, Hai-ping; Chen, Jia | This study describes a method development that goes beyond our previous work 1 on phonon-assisted electron relaxation processes where the total spin of the system remains unchanged. | |

130 | Reveal the interplay between high frequency and low frequency intramolecular vibrational mode in ultrafast electron transfer reaction | Rather, Shahnawaz; Fu, Bo; Scholes, Greg | We are presenting a theoretical study of an ultrafast electron transfer reaction by employing the Redfield theory of quantum dissipation dynamics and a model Hamiltonian involving three electronic states and two vibrational modes. | |

131 | Ultrafast Vibronic Dynamics of Singlet Fission: From Molecular Movies to Wavefunction Projection | Pandya, Raj; Schnedermann, Christoph; Alvertis, antonis; Rao, Akshay | Combining excited-state time-domain Raman spectroscopy and tree-tensor network state simulations, we construct the full 108-atom molecular movie of ultrafast singlet fission in a pentacene dimer, explicitly treating 252 vibrational modes on 5 electronic states. | |

132 | Entanglement entropy of highly excited eigenstates of many-body lattice Hamiltonians | Rigol, Marcos | In this talk, we discuss how the average entanglement entropy of subsystems of highly excited eigenstates of integrable and nonintegrable many-body lattice Hamiltonians (with a conservation law) differ from that of random pure states. | Session 11: Exploring Ergodicity-Breaking Through Nonequilibrium Order, Quantum Chaos and Integrability |

133 | Universal operator growth and emergent hydrodynamics in quantum systems | Altman, Ehud | I will present a hypothesis on universal properties of operators evolving under many-body Hamiltonian dynamics. | Session 11: Exploring Ergodicity-Breaking Through Nonequilibrium Order, Quantum Chaos and Integrability |

134 | Kinetically constrained dynamics and electron-phonon interactions in Rydberg quantum simulators | Lesanovsky, Igor | I will focus on incoherent and coherent regimes, discussing the breaking of ergodicity and the dressing of facilitated spins by phonons, respectively. | Session 11: Exploring Ergodicity-Breaking Through Nonequilibrium Order, Quantum Chaos and Integrability |

135 | Controlling the motion of levitated particles by coherent scattering | Cernotik, Ondrej; Filip, Radim | With straightforward extensions of our ideas to all three motional modes of levitated particles, our results pave the way to full quantum control of particle motion. | Session 12: Hybrid AMO/condensed matter quantum systems |

136 | Dynamical multistability in a quantum-dot laser | Mantovani, Mattia; Armour, Andrew; Belzig, Wolfgang; Rastelli, Gianluca | Here, we consider a hybrid implementation of a single-atom laser [1], where a quantum dot with two spin-split levels is coupled to a harmonic resonator and is embedded between two ferromagnetic contacts with opposite polarization. | Session 12: Hybrid AMO/condensed matter quantum systems |

137 | Quantum state preparation for coupled period tripling oscillators | Loerch, Niels; Zhang, Yaxing; Bruder, Christoph; Dykman, Mark | We investigate the quantum transition to a correlated state of coupled oscillators in the regime where they display period tripling in response to a drive at triple the eigenfrequency. | Session 12: Hybrid AMO/condensed matter quantum systems |

138 | Steering sound with light | Shah, Tirth; Ren, Hengjiang; Brendel, Christian; Pfeifer, Hannes; Peano, Vittorio; Painter, Oskar; Marquardt, Florian | We describe the design of a micron-scale on-chip patterned silicon device supporting i) helical transport of phonons along the interface of two topologically distinct domains, ii) photonic crystal optical cavities as a means of excitation and read-out of these mechanical vibrations via optomechanical parametric coupling. | Session 12: Hybrid AMO/condensed matter quantum systems |

139 | Efficient photon excitation readout for individual erbium ions in silicon | Hu, Guangchong; Boo, Gabriele; Yin, Chunming; Sellars, Matthew J.; Rogge, Sven | Here we would report the charge detection mechanism of a single erbium ion in a silicon transistor by pulsed light. | Session 12: Hybrid AMO/condensed matter quantum systems |

140 | Study of Erbium-doped yttrium orthovanadate crystal for the microwave to optical transduction | Xie, Tian; Rochman, Jake; Bartholomew, John; Ruskuc, Andrei; Kindem, Jonathan; Craiciu, Ioana; Faraon, Andrei | Here, we report the bulk properties of Erbium-doped yttrium orthovanadate (Er:YVO) including the Zeeman splitting, optical absorption spectra, oscillator strength, and spin inhomogeneity. | Session 12: Hybrid AMO/condensed matter quantum systems |

141 | INAS QUANTUM DOTS AND SURFACE ACOUTSIC WAVE CAVITIES FOR QUANTUM TRANSDUCTION | Autry, Travis; Berweger, Samuel; Sletten, Lucas; Mirin, Richard; Kabos, Pavel; Lehnert, Konrad; Silverman, Kevin | In this work, we demonstrate progress in developing state-of-the-art, stable SAWc operating at ~ 3.4GHz. | Session 12: Hybrid AMO/condensed matter quantum systems |

142 | Tunable Microwave Resonators Composed of Stoichiometric Titanium Nitride and Multilayer Titanium Nitride/Titanium | Wisbey, David; Brewster, Jacob; Vissers, Michael; Gao, Jiansong | Tunable Microwave Resonators Composed of Stoichiometric Titanium Nitride and Multilayer Titanium Nitride/Titanium | Session 12: Hybrid AMO/condensed matter quantum systems |

143 | Potential applications of solid-state laser cooling in silica glass | Mobini, Esmaeil; Peysokhan, Mostafa; Mafi, Arash | Recently, we have observed the SSLC in Yb-doped silica glass that potentially opens up new applications from radiation-balancing in fiber amplifiers to spot-cooling in silicon photonics. | Session 12: Hybrid AMO/condensed matter quantum systems |

144 | Strain activated hBN color centers in photonic and plasmonic systems | Proscia, Nicholas; Collison, Robert; Meriles, Carlos; Menon, Vinod | Here we demonstrate a deterministic coupling method by activation of such emitters via strain applied by mechanical bending at precise locations. | Session 12: Hybrid AMO/condensed matter quantum systems |

145 | Absolute quantum efficiency measurement of single photon emitters in hexagonal Boron Nitride | Nikolay, Niko; Mendelsohn, Noah; Özelci, Ersan; Sontheimer, Bernd; Böhm, Florian; Kewes, Günter; Toth, Milos; Aharonovich, Igor; Benson, Oliver | In this contribution, we will report on the mentioned method, the experimental results on two emitter families with different QEs (with the highest QE found approaching 87(7) %) [2], the discovery of part of the underlying level system, specifically the absolute de-excitation rates, and the effects on the expected maximum photon count rate. | Session 12: Hybrid AMO/condensed matter quantum systems |

146 | Quantum Correlations in the Stokes-anti-Stokes Raman Scattering: Photonic Cooper Pairs | Aguiar Júnior, Filomeno; Saraiva, Andre; Santos, Marcelo; Koiller, Belita; De Melo e Souza, Reinaldo; Pena, Arthur; Silva, Raigna; Monken, Carlos; Jorio, Ado | We investigate the energy, momentum and production rate of correlated Stokes–anti-Stokes (SaS) photons in diamond and we show the rate of correlated SaS production depends on the energy shifts of the pair, which in the BCS theory determines whether there should be an attractive or repulsive interaction. | Session 12: Hybrid AMO/condensed matter quantum systems |

147 | Controlling van der Waals Phenomena at the interface of Atomic and Two-Dimensional Dirac Quantum Matter | Dimri, Aaditya; Turner, Joseph; Del Maestro, Adrian; Kotov, Valeri | We discuss how the presence of two-dimensional (2D) materials, such as graphene, can significantly affect two intrinsically quantum phenomena that have traditionally served as probes of the fundamental van der Waals (VDW) interaction. | Session 12: Hybrid AMO/condensed matter quantum systems |

148 | Magneto-electric Rectification: A New Universal Second-order Nonlinearity | Trinh, Minh; Smail, Gregory; Yang, Daseul; Kim, Jinsang; Rand, Stephen | In this work, we report the first observation of the transient forward magneto-electric rectification in a pentacene thin-film using an electric-field-induced second harmonic generation (EFISH) technique. | Session 12: Hybrid AMO/condensed matter quantum systems |

149 | Theory of Magneto-electric Dynamics in Charge Separation | Smail, Gregory; Trinh, Minh; Rand, Stephen | A time dependent theory of magneto-electric nonlinearities at the molecular level is presented, with an emphasis on rectification. | Session 12: Hybrid AMO/condensed matter quantum systems |

150 | Sensing and transduction with high-Q micromechanical membranes | Regal, Cindy | I will present experiments probing micromechanical motion at quantum limits using SiN membranes. | Session 13: Hybrid/Macroscopic Quantum Systems, Optomechanics, and Interfacing AMO with Solid State/Nano Systems |

151 | Improved optical cavity in microwave-mechanical-optical transducer | Urmey, Maxwell; Brubaker, Benjamin; Mittal, Sarang; Burns, Peter; Kindem, Jonathan; Lehnert, Konrad; Regal, Cindy | By redesigning the optical cavity, we have reduced misalignment-induced optical loss and enabled greater optomechanical coupling, allowing reduced pump powers. | Session 13: Hybrid/Macroscopic Quantum Systems, Optomechanics, and Interfacing AMO with Solid State/Nano Systems |

152 | Toward on-chip microwave to optical transduction using erbium doped crystals | Rochman, Jake; Xie, Tian; Bartholomew, John; Craiciu, Ioana; Kindem, Jonathan; Schwab, Keith; Faraon, Andrei | Here, we present our progress towards a REI-based transducer using superconducting microwave resonators and amorphous silicon photonic crystal resonators patterned on the surface of an erbium-doped yttrium orthovanadate crystal. | Session 13: Hybrid/Macroscopic Quantum Systems, Optomechanics, and Interfacing AMO with Solid State/Nano Systems |

153 | Constructing Perfect Quantum Transducers Using Multi-Mode Imperfect Transducers | Zhang, Mengzhen; Chowdhury, Shoumik; Jiang, Liang | In this work, we generalize the previous results and show how to transform generic multi-mode imperfect transducers into perfect transducers requiring only finite-squeezing resources, based on a general protocol of decoupling irrelevant bosonic modes from the original system. | |

154 | A compact trampoline-in-the-middle system for acoustic frequency quantum optomechanics | Pluchar, Christian; Agrawal, Aman; Schenk, Edward; Wilson, Dalziel | We present a technique to “load” the resonator into the cavity by radiation pressure feedback cooling. | |

155 | Reducing added-noise in a micro-mechanically mediated electro-optic converter | Mittal, Sarang; Brubaker, Benjamin; Urmey, Maxwell; Burns, Peter; Kindem, Jonathan; Regal, Cindy; Lehnert, Konrad | Here, we present our efforts to lower the added noise by designing phononic shielding of the mechanics and replacing our superconducting metal with NbTiN. | |

156 | Towards quantum optomechanics using bulk acoustic wave resonators | Doeleman, Hugo; Vollenweider, Silvan; von Lüpke, Uwe; Chu, Yiwen | We present our advances in developing a cryogenic cavity optomechanical device based on a bulk-acoustic-wave (BAW) mechanical resonator, which can act as an essential part of a MW-to-optical transducer. | |

157 | Towards entanglement and interconversion of single mm-wave and optical photons in a hybrid cavity-QED system with Rydberg atoms | Suleymanzade, Aziza; Stone, Mark; Taneja, Lavanya; Anferov, Alexander; Kalia, Jasmine; Schuster, David; Simon, Jonathan | I will present our most recent progress towards entangling and interconverting single millimeter wave (mm-wave) and optical photons using Rydberg atoms as a transducer. | |

158 | Large electromechanical coupling in inductively coupled electromechanics | Schmidt, Philip; Amawi, Mohammad; Weichselbaumer, Stefan; Schwienbacher, Daniel; Pogorzalek, Stefan; Marx, Achim; Gross, Rudolf; Huebl, Hans | Here, we demonstrate electromechanical coupling based on a partly suspended SQUID combined with a coplanar microwave resonator exceeding a coupling rate of 1 kHz. | |

159 | Laser cooling to the zero-point energy of a nanomechanical oscillator | Qiu, Liu; Shomroni, Itay; Seidler, Paul; Kippenberg, Tobias | Here, we demonstrate continuous-wave laser sideband cooling of a silicon optomechanical crystal to the zero-point energy, reaching a mean thermal occupancy of $0.09_{-0.01}^{+0.02}$ quanta, or 92\% ground state occupation, self-calibrated via motional sideband asymmetry. | |

160 | Strong magnetomechanical coupling Part 1 | Kirchmair, Gerhard; Zoepfl, David; Schneider, Christian; Juan, Mahtieu | In our ongoing experimental efforts to reach this single-photon strong coupling regime, we developed an approach based on a mechanical oscillator inductively coupled to a superconducting circuit. | |

161 | Strong magnetomechanical coupling Part 2 | Schneider, Christian; Zoepfl, David; Juan, Mathieu; Kirchmair, Gerhard | In our ongoing experimental efforts to reach this single-photon strong coupling regime, we developed an approach based on a mechanical oscillator inductively coupled to a superconducting circuit. | |

162 | Exploring synthetic quantum matter in superconducting circuits | Ma, Ruichao | I will present our recent results on a new approach for preparing photonic many-body phases, where engineered dissipation is used as a resource to protect the fragile quantum states against intrinsic losses [1]. | |

163 | Listening to Bulk Crystalline Vibrations with Superconducting Qubits | Jain, Vijay; Yoon, Taekwan; Lei, Chan U; Chu, Yiwen; Frunzio, Luigi; Rakich, Peter; Schoelkopf, Robert | Here, we use the lifetime of a superconducting qubit to measure the local density of acoustic states in sapphire as a proxy for electro-mechanical decoherence. | |

164 | Strong coupling of two individually controlled atoms via a nanophotonic cavity | Ocola, Paloma; Samutpraphoot, Polnop; Dordevic, Tamara; Bernien, Hannes; Senko, Crystal; Vuletic, Vladan; Lukin, Mikhail | We demonstrate photon-mediated interactions between two individually trapped atoms coupled to a nanophotonic cavity. | |

165 | Generating multipartite entangled states with Cavity Rydberg Polaritons | Alaeian, Hadiseh; Pfau, Tilman | In this work, I introduce a new type of quasi-particles called cavity-Rydberg polariton, with large interaction inherited from their strongly-interacting Rydberg constituents. | |

166 | Parity switching in a semiconductor-based transmon qubit | Sabonis, Deividas; Erlandsson, Oscar; Kringhøj, Anders; Van Heck, Bernard; Larsen, Thorvald; Karzig, Torsten; Pikulin, Dmitry; Krogstrup, Peter; Petersson, Karl; Marcus, Charles | We study charge parity switching in a superconductor-semiconductor nanowire-based transmon device that shows Little-Parks oscillations of its frequency as a function of magnetic field. | |

167 | Suppression of charge dispersion by resonant tunneling in a single-channel transmon qubit | Kringhøj, Anders; Van Heck, Bernard; Larsen, Thorvald; Erlandsson, Oscar; Sabonis, Deividas; Krogstrup, Peter; Casparis, Lucas; Petersson, Karl; Marcus, Charles | When approaching the pinch-off regime of the nanowire junction, we observe resonant behavior of the plasma frequency, which we attribute to the formation of a quantum dot in the junction. | |

168 | Efficient microwave measurement of superconducting optomechanical circuits | Peterson, Gabriel; Kotler, Shlomi; Lecocq, Florent; Cicak, Katarina; Jin, X. Y.; Simmonds, Raymond; Aumentado, Jose; Teufel, John | Here I report recent progress to increase microwave measurement efficiencies to enable new regimes of ponderomotive squeezing and displacement sensing beyond the standard quantum limit. | |

169 | A Scalable Nanophotonic Platform for Rare Earth Ions | Dutta, Subhojit; Goldschmidt, Elizabeth; Barik, Sabyasachi; Saha, Uday; Waks, Edo | We present a new nanophotonic platform with Thulium ions doped in single crystal Lithium niobate thin films on insulator, that supports scalable top down fabrication. | |

170 | Spin-photon interfaces based on tin-vacancy centers in diamond | Trusheim, Matthew; De Santis, Lorenzo; Chen, Kevin; Ciccarino, Christopher; Englund, Dirk; Narang, Prineha | Here we discuss theoretical and experimental work towards coherent spin-photon interfaces based on SnV centers at liquid-helium temperatures. | |

171 | Investigating Microwave Raman Transitions Beyond the Rotating Wave Approximation in the Electronic Ground State of the Nitrogen-Vacancy Center | Böhm, Florian; Nikolay, Niko; Neinert, Sascha; Sontheimer, Bernd; Benson, Oliver | We will present the implementation of a spin-forbidden coherent population swapping between the m s = -1 and m s = +1 states, without undergoing the spin allowed transition into the m s = 0 state via microwave Raman transitions and compare our experimental results with theoretical calculations. | |

172 | Solid-state defect based quantum modules | Hanks, Michael; Trupke, Michael; Munro, William; Nemoto, Kae | In this presentation, we compare and contrast a number of different solid-state defects – including the nitrogen-, silicon-, and germanium-vacancy centers in diamond, as well as a variety of defects in silicon carbide – according to their suitability for quantum modules based on strong coupling to optical cavities. | |

173 | Three-color fermions under local and next-neighbor interactions | Pérez, Arturo; Franco Pe?aloza, Roberto; Silva Valencia, Jereson | We study three-color (N=3) fermions confined in a one-dimensional optical lattice and consider local and next-neighbor interactions, obtaining an extended SU(3) Fermi-Hubbard model. | Session 14: Interacting Ultracold Gases, Light-Matter Coupling, and Cavities |

174 | Interaction-induced long-time tail of a nonlinear ac absorption in a localized system: a relay-race mechanism | Raikh, Mikhail; Malla, Rajesh | We demonstrate that, in the presence of weak dipole-dipole interactions, the response of the system acquires a long-time component which oscillates with frequency much smaller than the Rabi frequency. | Session 14: Interacting Ultracold Gases, Light-Matter Coupling, and Cavities |

175 | Unidirectional flow of solitons with nonlinearity management | Alotaibi, Majed; Al-Marzoug, S. M.; Bahlouli, H.; Al Khawaja, U. | The results were established using numerical computations and then verified qualitatively using a variational approach. | Session 14: Interacting Ultracold Gases, Light-Matter Coupling, and Cavities |

176 | Cooperative Light Emission in the Presence of Strong Inhomogeneous Broadening | Sun, Chen; Chernyak, Vladimir; Piryatinski, Andrei; Sinitsyn, Nikolai | We study photon emission by an ensemble of two-level systems, with strong inhomogeneous broadening and coupled to a cavity mode whose frequency has linear time-dependence. | Session 14: Interacting Ultracold Gases, Light-Matter Coupling, and Cavities |

177 | "Signal Energy" of an Excited Dipolar Bose Gas driven by an Oscillating Dimple | Sakhel, Asaad; Sakhel, Roger | We thus examine the "signal energy" of a trapped DBEC that is driven by an oscillating dimple potential. | Session 14: Interacting Ultracold Gases, Light-Matter Coupling, and Cavities |

178 | Contour-time approach to the 2D disordered Bose-Hubbard model in the strong coupling regime. | Fitzpatrick, Matthew; Mokhtari-Jazi, Ali; Kennett, Malcolm | We develop a strong-coupling approach for calculating spatio-temporal correlations in the disordered Bose-Hubbard model. | Session 14: Interacting Ultracold Gases, Light-Matter Coupling, and Cavities |

179 | Study of Low Energy Excitations of Cold Atomic Fermi Systems using Quantum Monte Carlo Methods | Dauer, Kaelyn; Vitali, Ettore; Lopez, Annette; Kelly, Patrick | In this presentation we will review important recent advances in the calculations, and we will present new results about the spectrum of density fluctuations and spectral functions of Fermi gases. | Session 14: Interacting Ultracold Gases, Light-Matter Coupling, and Cavities |

180 | Broadband sensitivity improvement via coherent quantum feedback with PT symmetry | Li, Xiang; Adhikari, Rana; Adya, Vaishali; Chen, Yanbei; Chen, Yifan; Goryachev, Maxim; Ma, Yiqiu; Shu, Jing; Tobar, Michael; Ward, Robert; Zhao, Chunnong | Here we propose a simple stable quantum amplifier enabled by two-mode non-degenerate parametric amplification. | Session 14: Interacting Ultracold Gases, Light-Matter Coupling, and Cavities |

181 | Interacting Bose-Bose mixtures at finite temperature | Roy, Arko; Ota, Miki; Recati, Alessio; Dalfovo, Franco | We examine the role of thermal fluctuations in 2D uniform binary condensate mixtures of dilute atomic gases. | Session 14: Interacting Ultracold Gases, Light-Matter Coupling, and Cavities |

182 | Superradiant Peierls transition in a multi-mode optical cavity | Rylands, Colin; Lev, Benjamin; Keeling, Jonathan; Galitski, Victor | We consider such a system in which a one dimensional interacting Bose gas is loaded into a multi-mode optical cavity and subject to a pump field. | Session 14: Interacting Ultracold Gases, Light-Matter Coupling, and Cavities |

183 | Microscopic Origins of the Hess-Fairbank Effect and its Consistency with the Second Law of Thermodynamics | Leggett, Anthony; Packard, Douglas | We present results relating the transfer of atoms into a condensate or superfluid mode (at rest in the lab frame) to the overall generation of entropy, taking the rotating container of the fluid itself into account. | Session 14: Interacting Ultracold Gases, Light-Matter Coupling, and Cavities |

184 | Structure of chaotic eigenstates and their entanglement entropy | Murthy, Chaitanya; Srednicki, Mark | We consider a chaotic many-body system (i.e., one that satisfies the eigenstate thermalization hypothesis) that is split into two subsystems, with an interaction along their mutual boundary, and study the entanglement properties of an energy eigenstate with nonzero energy density. | Session 14: Interacting Ultracold Gases, Light-Matter Coupling, and Cavities |

185 | Mixed spectra and partially extended states in a two-dimensional quasiperiodic model | Szabo, Attila; Schneider, Ulrich | We introduce a two-dimensional generalisation of the quasiperiodic Aubry-André model. | Session 14: Interacting Ultracold Gases, Light-Matter Coupling, and Cavities |

186 | Efimov physics in the presence of a Fermi sea | Sun, Mingyuan | I will introduce the Efimov correlation in atomic system of two heavy bosons ( 133Cs) immersed in a bath of light fermions ( 6Li). | Session 14: Interacting Ultracold Gases, Light-Matter Coupling, and Cavities |

187 | Finite speed of quantum scrambling with long range interactions | Lucas, Andrew | In one spatial dimension, we prove that the speed of quantum scrambling remains finite for sufficiently large α. | Session 15: Lieb-Robinson Bounds in Systems with Power-Law Decaying Interactions |

188 | Emergent locality in systems with power-law interactions | Bar Lev, Yevgeny | Using two numerically exact techniques I will show that this is not the case for a number of generic one-dimensional systems. | Session 15: Lieb-Robinson Bounds in Systems with Power-Law Decaying Interactions |

189 | Locality and Digital Quantum Simulation of Power-Law Interactions | Tran, Minh | We show that Lieb-Robinson bounds provide tighter estimates for the gate count in quantum algorithms for simulating power-law interacting Hamiltonians. | Session 15: Lieb-Robinson Bounds in Systems with Power-Law Decaying Interactions |

190 | Signaling and scrambling for strongly long-range interacting quantum systems | Gong, Zhexuan; Guo, Andrew; Tran, Minh; Childs, Andrew; Gorshkov, Alexey | As a first step towards rectifying this problem, we prove two new Lieb-Robinson-type bounds that constrain the time for signaling and scrambling in strongly long-range interacting systems, for which no tight bounds were previously known. | Session 15: Lieb-Robinson Bounds in Systems with Power-Law Decaying Interactions |

191 | George E. Valley Jr. Prize Talk: Prethermal phases of matter in long-range interacting and classical many-body systems | Yao, Norman | In this talk, I will define the essential features of time crystalline order and describe two new venues where such order can be observed: 1) in a 1D disorder-free, long-range interacting system and 2) in a classical spin system. | Session 16: Long-Ranged Interactions and Nonequilibrium Systems |

192 | Spin squeezing in the XXZ model with power-law interactions | Qu, Chunlei; Rey, Ana M. | In this talk, we will present our recent results on spin squeezing generation in the XXZ model with power-law interactions. | Session 16: Long-Ranged Interactions and Nonequilibrium Systems |

193 | Persistence of power-law correlations in nonequilibrium steady states of gapped quantum spin chains | Lancaster, Jarrett; Godoy, Joseph | For both types of systems, we find the persistence of power-law correlations despite the ground state correlation functions exhibiting exponential decay. | Session 16: Long-Ranged Interactions and Nonequilibrium Systems |

194 | Locality and Heating in Periodically Driven, Power-law Interacting Systems | Tran, Minh; Ehrenberg, Adam; Guo, Andrew; Titum, Paraj; Abanin, Dmitry; Gorshkov, Alexey | Using a theory based on linear response, we show that the heating time is exponentially long as a function of the drive frequency for α > D. For systems that may not obey linear response theory, we use a more general Magnus-like expansion to show the existence of quasi-conserved observables, which implies exponentially long heating time for α > 2D. | Session 16: Long-Ranged Interactions and Nonequilibrium Systems |

195 | Origin of the slow growth of entanglement entropy in long-range interacting spin systems | Pappalardi, Silvia; Lerose, Alessio | In this work, we unveil the general mechanism underlying this counterintuitive phenomenon for generic d-dimensional quantum spin systems with slowly-decaying interactions. | Session 16: Long-Ranged Interactions and Nonequilibrium Systems |

196 | Orthogonality catastrophe with long-range interactions | Xia, Wei; Li, Xiaopeng | In this talk, I will present our recent study on Anderson orthogonality catastrophe with long rang interaction in one, two, and three dimensions. | Session 16: Long-Ranged Interactions and Nonequilibrium Systems |

197 | Measurement-Induced Phase Transitions in Long-range Quantum Circuits | Block, Maxwell; Bao, Yimu; Choi, Soonwon; Altman, Ehud; Yao, Norman | In this talk, we study 1D long-range hybrid quantum circuits where each unitary is a random two-qubit Clifford gate with range sampled from a 1/r^α power law distribution. | Session 16: Long-Ranged Interactions and Nonequilibrium Systems |

198 | Quantum Simulation and Computation with Programmable Rydberg Atom Arrays | Keesling, Alexander; Levine, Harry; Omran, Ahmed; Semeghini, Giulia; Ebadi, Sepehr; Bluvstein, Dolev; Pichler, Hannes; Greiner, Markus; Vuletic, Vladan; Lukin, Mikhail | I will present recent progress towards extending our experimental platform to control hundreds of atoms in arbitrary two-dimensional geometries, and the new prospects for quantum simulation and computation in these large-scale atom arrays. | Session 16: Long-Ranged Interactions and Nonequilibrium Systems |

199 | Observation of nanoscale hydrodynamics in a strongly interacting dipolar spin ensemble in diamond — Theory | Machado, Francisco; Zu, Chong; Ye, Bingtian; Kobrin, Bryce; Mittiga, Thomas; Hsieh, Satcher; Bhattacharyya, Prabudhya; Hoehn, Tim; Choi, Soonwon; Laumann, Christopher; Budker, Dmitry; Yao, Norman | In this talk, we introduce a novel method that combines analytical, numerical, and experimental approaches to address this challenge. | Session 16: Long-Ranged Interactions and Nonequilibrium Systems |

200 | Observation of nanoscale hydrodynamics in a strongly interacting dipolar spin ensemble in diamond — Experiment | Zu, Chong; Machado, Francisco; Ye, Bingtian; Kobrin, Bryce; Mittiga, Thomas; Hsieh, Satcher; Bhattacharyya, Prabudhya; Hoehn, Tim; Choi, Soonwon; Laumann, Christopher; Budker, Dmitry; Yao, Norman | In this talk, we introduce a novel platform, based upon nitrogen-vacancy (NV) color centers surrounded by a dense ensemble of substitutional nitrogen (P1) centers in diamond, to experimentally probe nanoscale spin diffusion. | Session 16: Long-Ranged Interactions and Nonequilibrium Systems |

201 | A reconfigurable blue-detuned lattice for neutral atom quantum computing | Grinkemeyer, Brandon; Graham, Trent; Kwon, Minho; Marra, Zachary; Jiang, Xiaoyu; Lichtman, Martin; Ebert, Matthew; Saffman, Mark | We present a novel approach to forming a blue-detuned optical lattice for single Cesium atoms. | Session 16: Long-Ranged Interactions and Nonequilibrium Systems |

202 | The Measurement-Driven Entanglement Phase Transition: Relation to Cluster Fragmentation | Vijay, Sagar | We study the dynamics of a collection of spins evolving under unitary gates and random projective measurements, and in the absence of spatial locality. | Session 16: Long-Ranged Interactions and Nonequilibrium Systems |

203 | Measurement-Induced Phase Transitions in Many-Body Localized and Integrable Systems | Bao, Yimu; Choi, Soonwon; Altman, Ehud | We analyze a toy model of many-body localized systems as a paradigmatic example. | Session 16: Long-Ranged Interactions and Nonequilibrium Systems |

204 | Probing quench dynamics across a quantum phase transition into a 2D Ising antiferromagnet | Bakr, Waseem | Probing quench dynamics across a quantum phase transition into a 2D Ising antiferromagnet | Session 17: Non-Equilibrium Physics with Cold Atoms and Molecules, Rydberg Gases, and Trapped Ions |

205 | Dynamics of a hole in a quantum antiferromagnet | Bohrdt, Annabelle; Grusdt, Fabian; Knap, Michael; Vijayan, Jayadev; Sompet, Pimonpan; Salomon, Guillaume; Koepsell, Joannis; Hirthe, Sarah; Bloch, Immanuel; Groß, Christian | We numerically study the real-time dynamics of a single hole created in the ground state of the t−J model on a square lattice. | Session 17: Non-Equilibrium Physics with Cold Atoms and Molecules, Rydberg Gases, and Trapped Ions |

206 | Many-Body Dephasing after Quantum Quench with a Trapped Ion Quantum Simulator | Guo, Lingzhen; Kaplan, Harvey; Tan, Wen Lin; De, Arinjoy; Pagano, Guido; Marquardt, Florian; Monroe, Christopher | We investigate many-body dephasing in the 1D transvese-filed Ising chain with long-range power-law interactions. | Session 17: Non-Equilibrium Physics with Cold Atoms and Molecules, Rydberg Gases, and Trapped Ions |

207 | Subdiffusion and Heat Transport in a Tilted 2D Fermi-Hubbard System | Guardado-Sanchez, Elmer; Morningstar, Alan; Spar, Benjamin; Brown, Peter; Huse, David; Bakr, Waseem | In order to explain the underlying physics we develop a hydrodynamic model that exhibits this crossover. | Session 17: Non-Equilibrium Physics with Cold Atoms and Molecules, Rydberg Gases, and Trapped Ions |

208 | Reservoir engineering and many-body decoherence in the quantum Ising model | Carr, Lincoln; Jaschke, Daniel; de Vega, Ines | We present quantitative predictions for quantum simulator experiments on Ising models from trapped ions to Rydberg chains and show how the thermalization, and thus decoherence times, can be controlled by considering common, independent, and end-cap couplings to the bath. | Session 17: Non-Equilibrium Physics with Cold Atoms and Molecules, Rydberg Gases, and Trapped Ions |

209 | Spin squeezing dynamics and large-spin analogues in an optical lattice clock | Perlin, Michael; Rey, Ana Maria | We show how the multilevel generalization of interactions, spin-orbit coupling, and external driving fields can be treated in a simple, unified form. | Session 17: Non-Equilibrium Physics with Cold Atoms and Molecules, Rydberg Gases, and Trapped Ions |

210 | Dynamic instabilities and universal relaxation in quantum spin systems | Rodriguez Nieva, Joaquin; Bhattacharyya, Saraswat; Sels, Dries; Demler, Eugene | I will discuss manifestations of SU(2) symmetry on the universal dynamics of Heisenberg ferromagnets driven out of equilibrium. | Session 17: Non-Equilibrium Physics with Cold Atoms and Molecules, Rydberg Gases, and Trapped Ions |

211 | Non-local emergent hydrodynamics in a long-range quantum spin system | Schuckert, Alexander; Lovas, Izabella; Knap, Michael | We show [1] how this universality is extended by effective classical Lévy flights in the presence of long-range couplings that decay algebraically with distance as r -α for 0.5<α≤1.5. | Session 17: Non-Equilibrium Physics with Cold Atoms and Molecules, Rydberg Gases, and Trapped Ions |

212 | Nonequilibrium dynamics and transport in the frustrated two bath spin boson model | Belyansky, Ron; Whitsitt, Seth; Lundgren, Rex; Wang, Yidan; Gorshkov, Alexey | In this work, we use numerical and analytical methods to study the dynamics of a generalized spin boson model where the spin is coupled to two independent Ohmic baths via non-commuting operators. | Session 17: Non-Equilibrium Physics with Cold Atoms and Molecules, Rydberg Gases, and Trapped Ions |

213 | Unravelling open quantum systems on a NISQ Computer | Petruccione, Francesco; Sinayskiy, Ilya; Park, Kyungdeock; RHEE, June-Koo(KEVIN) | Here, we show how such unravellings can be simulated on a NISQ computer. | Session 17: Non-Equilibrium Physics with Cold Atoms and Molecules, Rydberg Gases, and Trapped Ions |

214 | Linear response theory for the OTOC and entropy growth in dissipative systems. | Chen, Xin | We formulate the linear response theory to calculate the out-of-time ordered corralator (OTOC) and the entropy growth for dissipative systems, i.e. systems suddenly coupled to a thermal bath, which helps to understand the behavior of the information scrambling in the early stage. | Session 17: Non-Equilibrium Physics with Cold Atoms and Molecules, Rydberg Gases, and Trapped Ions |

215 | Prethermal non-equilibrium phases in classical systems | Ye, Bingtian; Machado, Francisco; Yao, Norman | In particular, we prove the existence of an emergent symmetry in the prethermal regime, and utilize this symmetry to generate novel non-equilibrium phases such as classical prethermal discrete time crystals (CPDTC). | Session 17: Non-Equilibrium Physics with Cold Atoms and Molecules, Rydberg Gases, and Trapped Ions |

216 | Engineering generalized Gibbs ensembles with trapped ions | Reiter, Florentin; Lange, Florian; Jain, Shreyans; Grau, Matt; Home, Jonathan; Lenarcic, Zala | We present an implementation scheme for a particular choice of Lindblad operators and suggest experimental observables which detect that a GGE approximately describes the stabilized steady-state. | Session 17: Non-Equilibrium Physics with Cold Atoms and Molecules, Rydberg Gases, and Trapped Ions |

217 | Quantum Cherenkov Transition in Bose Polaron Systems | Seetharam, Kushal; Shchadilova, Yulia; Grusdt, Fabian; Zvonarev, Mikhail; Demler, Eugene | We study the behavior of a finite-momentum impurity immersed in a weakly interacting Bose-Einstein condensate (BEC) of ultra-cold atoms near an interspecies Feshbach resonance. | Session 18: Nonequilibrium dynamics in ultracold matter |

218 | Tuning of Scattering Resonances by Time-Periodic Driving | Dauer, Christoph; Pelster, Axel; Eggert, Sebastian | Tuning of Scattering Resonances by Time-Periodic Driving | Session 18: Nonequilibrium dynamics in ultracold matter |

219 | Quench dynamics of two-component dipolar Fermions in a Quasiperiodic potential | pandey, bradraj; Dagotto, Elbio; pati, swapan | Motivated by the recent experiments in fermionic polar gases, we study the quenched dynamics of two-component dipolar fermions, in the presence and absence of a quasiperiodic potential. | Session 18: Nonequilibrium dynamics in ultracold matter |

220 | Enabling ultrastrong-coupling phenomena with single-drive Jaynes–Cummings models | Sánchez Muñoz, Carlos; Frisk Kockum, Anton; Miranowicz, Adam; Nori, Franco | We propose the effective simulation of light-matter ultrastrong-coupling phenomena with strong-coupling systems. | Session 18: Nonequilibrium dynamics in ultracold matter |

221 | Dynamics of the decay of dark solitons in superfluid Fermi gases | Van Alphen, Wout; Takeuchi, Hiromitsu; Tempere, Jacques | Dynamics of the decay of dark solitons in superfluid Fermi gases | Session 18: Nonequilibrium dynamics in ultracold matter |

222 | Operator complexity of adiabatic gauge potential | Pandey, Mohit; Sels, Dries; W. Claeys, Pieter; Polkovnikov, Anatoli; Campbell, David | Here we characterize the complexity of the adiabatic gauge potential (AGP), which encodes the geometry of eigenstates when varying a control parameter in a Hamiltonian. | Session 18: Nonequilibrium dynamics in ultracold matter |

223 | Transport in a bosonic superfluid point contact | Uchino, Shun; Brantut, Jean-Philippe | We discuss heat and particle transport of a weakly interacting, low temperature Bose-Einstein condensate in a quantum point contact. | Session 18: Nonequilibrium dynamics in ultracold matter |

224 | Entanglement production by interaction quenches of quantum chaotic subsystems | Pulikkottil Jacob, Jethin; Lakshminarayan, Arul; Srivastava, Shashi; Bäcker, Arnd; Tomsovic, Steven | The extension to the non-perturbative regime is performed using a recursively embedded perturbation theory to produce the full transition and the saturation values. | Session 18: Nonequilibrium dynamics in ultracold matter |

225 | The entanglement membrane in deterministic systems | Zhou, Tianci; Nahum, Adam | We show here how to make sense of this membrane in more realistic models, which do not involve an average over random unitaries. | Session 18: Nonequilibrium dynamics in ultracold matter |

226 | Nonequilibrium dual-boson approach | Chen, Feng; Galperin, Michael; Katsnelson, Mikhail | We develop nonequilibrium auxiliary quantum master equation dual boson method (aux-DB), and argue that it presents a convenient way to describe steady states of correlated impurity models (such as single molecule optoelectronic devices) where electron and energy transport should be taken into account. | Session 18: Nonequilibrium dynamics in ultracold matter |

227 | Modeling Collective Emission in Cavities by Phase Space Trajectories | Li, Tao; Chen, Hsing Ta; Nitzan, Abraham; Subotnik, Joseph | We model N electronic two-level systems (TLSs) coupled to a multimode cavity by sampling independent trajectories in Wiger phase space with a Meyer-Miller-Stock-Thoss (MMST) mapping Hamiltonian. | Session 18: Nonequilibrium dynamics in ultracold matter |

228 | The role of integrability in speeding up collective spin polarization. | Villazon, Tamiro; Claeys, Pieter; Polkovnikov, Anatoli; Chandran, Anushya | We study an anisotropic central spin model with two classes of special eigenstates: bright and dark. | Session 18: Nonequilibrium dynamics in ultracold matter |

229 | Quantum Weak Measurement Back-action Control On A Strongly Interacting BEC | Shi, Yueheng; Szigeti, Stuart; Pattanayak, Arjendu | We report on progress towards controlling the measurement back-action on a strongly interacting Bose Einstein condensate (BEC) continuously monitored under phase-contrast imaging setup. | Session 18: Nonequilibrium dynamics in ultracold matter |

230 | Unitary Subharmonic Response of Floquet Majorana Modes | Shtanko, Oles; Movassagh, Ramis | To this end, we show that unpaired Majorana modes in Floquet systems can directly be visualized using the phenomenon of unitary subharmonic response. | Session 18: Nonequilibrium dynamics in ultracold matter |

231 | Real time dynamics of impurity and disorder scattering with interacting Fermion wave packets | Eggert, Sebastian; Jägering, Kevin; Schneider, Imke; Nagler, Benjamin; Widera, Artur | We analyze the damping and scattering behavior from large scale numerical t-DMRG simulations in 1D as a function of interaction, displacement and disorder strength in a regime where a comparison with our experiments is possible. | Session 18: Nonequilibrium dynamics in ultracold matter |

232 | Anisotropic Wave Breaking in Highly Nonlinear Thermal Media | Marcucci, Giulia; Cala, Phillip; Man, Weining; Pierangeli, Davide; Conti, Claudio; Chen, Zhigang | We analyze this shock and find that it is caused by the interplay of a trapping/focusing potential along x and an antitrapping/defocusing potential along y. | Session 19: Nonlinear optics, quantum optics, and optical devices |

233 | Strong-Field Ionization in Bicircular Laser Fields | Chaloupka, Jan | Here we present new results using a classical ensemble approach and utilizing a high-performance computational cluster. | Session 19: Nonlinear optics, quantum optics, and optical devices |

234 | Decomposition of optical force into gradient and scattering parts | Zheng, Hongxia; Jiang, Yikun; Chen, Huajin; Li, Xiao; Yu, Xinning; Lu, Wanli; Ng, Jack; Lin, Zhifang | Here, we report several algorithms we developed to calculate the decomposed force for spherical particle with arbitrary size and composition and present some interesting results calculated by these algorithms [1-4]. | Session 19: Nonlinear optics, quantum optics, and optical devices |

235 | Maximal coherence and degree of polarization in linear optical systems | Al-Qasimi, Asma; James, Daniel | Here, we study coherence properties of classical light using convenient techniques from Matrix Algebra. | Session 19: Nonlinear optics, quantum optics, and optical devices |

236 | Generating photon-added states without adding a photon | Shringarpure, Saurabh; Franson, James | In this work, we demonstrate that a continuous range of non-classical states, including a displaced number state and photon-added state, can be prepared in the signal when the input idler mode contains a pure single-photon state and the output idler mode is post-selected to be unchanged by the OPA, depending on the gain of the OPA. | Session 19: Nonlinear optics, quantum optics, and optical devices |

237 | Limits to Single Photon Detection: Amplification | Propp, Tzula; van Enk, Steven | We have constructed a model of photo detection that is both idealized and realistic enough to calculate the limits and tradeoffs inherent to single photon detector (SPD) figures of merit. | Session 19: Nonlinear optics, quantum optics, and optical devices |

238 | Optical attenuation without absorption | Nodurft, Ian; Brewster, Richard; Pittman, Todd; Franson, James | Optical attenuation without absorption | Session 19: Nonlinear optics, quantum optics, and optical devices |

239 | A computational design of cylindrically symmetric 2D dielectric grating meta-lens with optical limiting effect based on saturable absorption by FDTD simulation | Zhao, Yuqi; Chalabi, Hamidreza; Waks, Edo | A computational design of cylindrically symmetric 2D dielectric grating meta-lens with optical limiting effect based on saturable absorption by FDTD simulation | Session 19: Nonlinear optics, quantum optics, and optical devices |

240 | Optical pulse propagation in transverse Anderson localization optical fibers | Mafi, Arash; Bassett, Cody; Tuggle, Matthew; Peysokhan, Mostafa; Mobini, Esmaeil; Ballato, John | We study the optical pulse propagation in transverse Anderson localization optical fibers (TALOFs). | Session 19: Nonlinear optics, quantum optics, and optical devices |

241 | Characterization and design of radiation-balanced Yb-doped ZBLAN fiber laser | Peysokhan, Mostafa; Mobini, Esmaeil; Mafi, Arash | In this study, we introduce a non-constructive and non-contact method for fully characterizing the Yb-doped ZBLAN fiber. | Session 19: Nonlinear optics, quantum optics, and optical devices |

242 | A synthetic Hall effect creates strong photonic nonreciprocity | Peterson, Christopher; Benalcazar, Wladimir; Lin, Mao; Hughes, Taylor; Bahl, Gaurav | We show that this synthetic Hall effect can induce strongly nonreciprocal transmission, with greater than 58 dB of contrast, when both synthetic fields are tuned to maximize their respective symmetry breaking. | Session 19: Nonlinear optics, quantum optics, and optical devices |

243 | High Harmonic Generation In Single-Walled Carbon Nanotubes Driven By A Circularly Polarized Incident Field | Furman, Walter; Reichl, Linda | High Harmonic Generation In Single-Walled Carbon Nanotubes Driven By A Circularly Polarized Incident Field | Session 19: Nonlinear optics, quantum optics, and optical devices |

244 | Electromagnetically induced transparency without control field in giant atoms | Ask, Andreas; Fang, Yao-Lung L.; Frisk Kockum, Anton | We have investigated the creation of EIT in systems without the need for an explicit control field: two two-level atoms coupled to a waveguide. | Session 19: Nonlinear optics, quantum optics, and optical devices |

245 | Topological Spaser in a Non-uniform Field | Ghimire, Rupesh; Wu, Jhih-Sheng; Apalkov, Vadym; Stockman, Mark | We propose a nanospaser made of an achiral plasmonic-metal nanodisc and a two-dimensional chiral gain medium, e.g., a monolayer transition-metal dichalcogenide (TMDC). | Session 19: Nonlinear optics, quantum optics, and optical devices |

246 | Arbitrary optical wave evolution with Fourier transforms and phase masks | Lopez Pastor, Victor Jose; Lundeen, Jeff; Marquardt, Florian | Here we present a constructive proof that it is possible to realize a multiport universal interferometer on N modes with a succession of 6N Fourier transforms and 6N+1 phase masks, for any even integer N. | Session 19: Nonlinear optics, quantum optics, and optical devices |

247 | Discovering feedback strategies for open quantum systems via deep reinforcement learning | Marquardt, Florian | In this talk, I will describe how neural networks can discover from scratch feedback strategies to help control open quantum systems, by exploiting the toolbox of reinforcement learning. | Session 20: Open Quantum Systems |

248 | Integrability Meets Dissipation: Critical Dynamics of Open Driven Systems | Paz, Daniel; Maghrebi, Mohammad | We investigate the paradigmatic open Dicke model which describes collective light-matter interactions subject to dissipation. | Session 20: Open Quantum Systems |

249 | Dissipative generation of highly entangled states of light and matter | Halati, Catalin-Mihai; Sheikhan, Ameneh; Ritsch, Helmut; Kollath, Corinna | We investigate the full quantum evolution of ultracold interacting bosonic atoms confined to a chain geometry and coupled to the field of an optical cavity. | Session 20: Open Quantum Systems |

250 | Boundary dissipation in Ising CFT | javed, umar; Kolodrubetz, Michael | We study one of the simplest CFTs, namely thequantum critical Ising model with boundary dephasing along the direction of the most relevant boundary operator. | Session 20: Open Quantum Systems |

251 | On the nature of the non-equilibrium phase transition in the non-Markovian driven Dicke model | Lundgren, Rex; Gorshkov, Alexey; Maghrebi, Mohammad | In this work, we study a variant of the Dicke model where the cavity mode is lossy due to the coupling to a Markovian environment while the atomic mode is coupled to a colored bath. | Session 20: Open Quantum Systems |

252 | Anomalous exceptional point and non-Markovian Purcell effect at threshold in 1-D open quantum systems | Garmon, Savannah; Ordonez, Gonzalo; Hatano, Naomichi | We show that when a quantum emitter is coupled near threshold to a generic 1-D continuum with a van Hove singularity in the density of states, a characteristic spectral configuration appears involving a bound state, a resonance state and an anti-resonance state, as well as several exceptional points (EPs). | Session 20: Open Quantum Systems |

253 | Non-Markovian collective emission from macroscopically separated emitters | Sinha, Kanupriya; Meystre, Pierre; Solano, Pablo | We study the collective radiative decay of a system of two two-level emitters coupled to a onedimensional waveguide in a regime where their separation is comparable to the coherence length of a spontaneously emitted photon. | Session 20: Open Quantum Systems |

254 | Analysis of matter-wave emission dynamics and polariton formation in a quantum-emitter array coupled to a band structure | Lanuza, Alfonso; Stewart, Michael; Kwon, Joonhyuk; Kim, Youngshin; Schneble, Dominik | Here we present analytic solutions for the single excitation dynamics in a 1D sinusoidal lattice potential and a finite or infinite array of emitters. | Session 20: Open Quantum Systems |

255 | Generalized Theory of Pseudomodes for Exact Descriptions of Non-Markovian Quantum Processes | Pleasance, Graeme; Garraway, Barry; Petruccione, Francesco | In this talk we develop a general approach to analyzing the non-Markovian behavior of an open quantum system in a setting where the interaction is modelled by a generalized class of spectral density function. | Session 20: Open Quantum Systems |

256 | Stabilization of Fractional Quantum Hall States of Light: Effects of Fractionalization | Kurilovich, Pavel; Lebreuilly, Jose; Kurilovich, Vladislav; Girvin, Steven | We investigate the efficiency of such a scheme for the preparation of a photonic Laughlin state at half-filling. | Session 20: Open Quantum Systems |

257 | Transport through a quantum critical system: A thermodynamically consistent approach | Wächtler, Christopher; Schaller, Gernot | We show for a class of critical systems connected to several non-Markovian heat baths that by combining the reaction coordinate mapping [2] and a polaron technique [3] it is possible to find analytic expressions of the reduced system dynamics in the vicinity of quantum critical points, which are consistent with the laws of thermodynamics. | Session 20: Open Quantum Systems |

258 | Deconstructing Effective Non-Hermitian Dynamics in Quadratic Bosonic Hamiltonians | Flynn, Vincent; Cobanera, Emilio; Viola, Lorenza | We discuss potential applications of our techniques to quadratic Lindblad dynamics. | Session 20: Open Quantum Systems |

259 | Non-Hermitian Linear Response Theory | Pan, Lei; Chen, Xin; Chen, Yu; Zhai, Hui | Here we consider the dynamical response of a Hermitian system to a non-Hermitian probe, and we develop a non-Hermitian linear response theory that can also relate this dynamical response to equilibrium properties. | Session 20: Open Quantum Systems |

260 | Novel biomedical applications of lasers: dermatology, gynecology, and stomatology | Lukac, Matjaz; Milanic, Matija; Jezersek, Matija | Novel biomedical applications of lasers: dermatology, gynecology, and stomatology | Session 21: Optics in Soft Matter and Medicine |

261 | Understanding coronary plaque biomechanical properties with intravascular imaging | Bouma, Brett | We have recently developed a novel approach for real-time modeling that can be used during procedures in the cardiac catheterization laboratory. | Session 21: Optics in Soft Matter and Medicine |

262 | Optical properties of silicone rubber tissue phantoms for biomedical optics applications | Milanic, Matija; Novak, Jure; Naglič, Peter; Zelinskyi, Yevhen; Rogelj, Luka; Kumperščak, Borut; Stergar, Jost; Bürmen, Miran | A useful phantom must be well characterized, namely its physical properties must be accurately measured using standard techniques. | Session 21: Optics in Soft Matter and Medicine |

263 | Laser induced jets in needle free drug delivery | Pankaj, FNU; Marston, Jeremy | Here, we have investigated the feasibility of laser-induced micro-jets as a needle-free injection technique. | Session 21: Optics in Soft Matter and Medicine |

264 | Fourier Transform Laser Speckle Imaging for art conservation | Buijs, Jesse; Van der Gucht, Jasper; Sprakel, Joris | In this article we show how to apply this algorithm and how to measure a diffusion coefficient with it. | Session 21: Optics in Soft Matter and Medicine |

265 | Doppler Functional Imaging of Cancer Drug Sensitivity in Living Tumor Biopsies | Li, Zhe; Jalal, Shadia; Turek, John; Nolte, David | We introduce a technique called tissue dynamics spectroscopic imaging (TDSI) to reveal drug response variations within small cubic millimeter biopsy samples. | Session 21: Optics in Soft Matter and Medicine |

266 | Probing the interior dynamics of shear thickening colloidal suspensions using confocal line scans | Miller, Joia; Blair, Daniel; Urbach, Jeffrey | Here we use line scans on a confocal microscope to visualize particle flows in a sheared suspension, increasing our temporal resolution by two orders of magnitude. | Session 21: Optics in Soft Matter and Medicine |

267 | Nanoscale Optical Imaging of Soft Matter Under Flow | Shakya, Anisha; Park, Seong Jun; King, John | We use this technique to study depletion layer formation and dynamics under Poiseuille flow, which remains an outstanding problem in fluid mechanics. | Session 21: Optics in Soft Matter and Medicine |

268 | Analyzing the Flow Drying Colloidal Suspensions Using Optical Coherence Tomography | Li, Lanfang; Huang, Yongyang; Jiang, Zhiyu; Zhou, Chao; Ou-Yang, H Daniel | In this work, we present the visualization and analysis of flow in drying colloidal suspensions composed of colloidal polymer particles in water. | Session 21: Optics in Soft Matter and Medicine |

269 | Hyperspectral imaging as a technique to evaluate peritonitis in mouse models | Stergar, Jost; Dolenec, Rok; Lakota, Katja; Brezovec, Neza; Perse, Martina; Kojc, Nika; Tomsic, Matija; Milanic, Matija | We present a classification method for determination of the state of peritonitis using HSI. | Session 21: Optics in Soft Matter and Medicine |

270 | Efficient bidirectional piezo-optomechanical transduction between microwave and optical frequency | Jiang, Wentao; Sarabalis, Christopher; Dahmani, Yanni; Patel, Rishi; Mayor, Felix; McKenna, Timothy; Van Laer, Raphael; Safavi-Naeini, Amir | Here we demonstrate an on-chip piezo-optomechanical transducer that systematically addresses all these challenges to achieve nearly three orders of magnitude improvement in conversion efficiency. | Session 22: Optomechanics |

271 | Piezoelectric optomechanics in a 3D microwave cavity: A route to microwave to optical transduction | Ramp, Hugh; Balram, Krishna; Srinivasan, Kartik; Davis, John | Piezoelectric optomechanics in a 3D microwave cavity: A route to microwave to optical transduction | Session 22: Optomechanics |

272 | Fractal-like mechanical resonators with soft-clamped fundamental mode | Fedorov, Sergey; Beccari, Alberto; Engelsen, Nils Johan; Bereyhi, Mohammadjafar; Groth, Robin; Kippenberg, Tobias | We describe a realistic resonator design in which the quality factor of the fundamental mode is enhanced by as much as two orders of magnitude compared to a simple string with the same size and tension. | Session 22: Optomechanics |

273 | Manipulation of geometric nonlinearity to probe nonlinear damping in 2D NEMS | Prasad, Parmeshwar; Naik, Akshay | In the current work, we probe the nonlinear damping by manipulating the effective Duffing (cubic) nonlinearity using electrical means. | Session 22: Optomechanics |

274 | Piezo-optomechanics in lithium niobate on silicon-on-insulator for microwave-to-optics conversion | Van Laer, Raphael; Jiang, Wentao; Sarabalis, Christopher; Patel, Rishi; Mayor, Felix; McKenna, Timothy; Cleland, Agnetta; Wollack, Edward; Arrangoiz-Arriola, Patricio; Witmer, Jeremy; Safavi-Naeini, Amir | We observe efficient piezo- and opto-mechanical interactions involving tightly confined GHz mechanics, establishing an intriguing path towards low-energy conversion between microwaves and optics. | Session 22: Optomechanics |

275 | Gallium Phosphide as a Piezoelectric Platform for Quantum Optomechanics | Stockill, Robert; Forsch, Moritz; Beaudoin, Gregoire; Pantzas, Konstantinos; Sagnes, Isabelle; Braive, Rémy; Groeblacher, Simon | We observe non-classical correlations between state-projecting photons and the confined mechanical mode, establishing GaP as a piezoelectric platform for noise-free quantum-state conversion between microwave and optical carriers. | Session 22: Optomechanics |

276 | Optomechanical Quantum State Tomography | Patel, Rishi; McKenna, Timothy; Wang, Zhaoyou; Witmer, Jeremy; Jiang, Wentao; Wollack, Edward; Sarabalis, Christopher; Stas, Pieter-Jan; Laer, Raphael; Safavi-Naeini, Amir | We generate and characterize heralded quantum states of a mechanical resonator with a single added phonon. | Session 22: Optomechanics |

277 | Floquet–Lyapunov approach to optomechanical systems | Pietikäinen, Iivari; Cernotik, Ondrej; Filip, Radim | We introduce a method to solve the dynamics of a time-periodic system, by using the Floquet approach to write the dynamics in the form of a Lyapunov equation. | Session 22: Optomechanics |

278 | Optomechanical intermodulation noise | Fedorov, Sergey; Beccari, Alberto; Bereyhi, Mohammadjafar; Engelsen, Nils Johan; Kippenberg, Tobias | We experimentally investigate the thermal noise properties of a room-temperature, membrane-in-the-middle optomechanical cavity in the regime of nominal quantum cooperativity approaching one. | Session 22: Optomechanics |

279 | Phonon-Counting Experiments with Superfluid Helium Optomechanics | Patil, Yogesh; Yu, Jiaxin; Frazier, Sean; Johnson, Kale; Garcia, Sébastien; Ott, Konstantin; Reichel, Jakob; Harris, Jack | Here we describe new measurements in which we have incorporated single-photon detectors (and multiple cascaded optical filters) to record individual sideband photons, each of which is associated with the creation (or annihilation) of a single phonon in the acoustic mode. | Session 22: Optomechanics |

280 | Pulsed quantum processing of two mechanical elements | Kotler, Shlomi; Peterson, Gabriel; Lecocq, Florent; Cicak, Katarina; Simmonds, Raymond; Aumentado, Jose; Teufel, John | Here we design, fabricate and measure a microwave resonator coupled to two separate mechanical resonators (drums). | Session 22: Optomechanics |

281 | Lifetime and Coherence Measurements of an Optomechanical Quantum Memory | Wallucks, Andreas; Marinkovic, Igor; Hensen, Bas; Stockill, Robert; Groeblacher, Simon | Here we discuss the prospects of such nanobeams with ultra-long lived mechanical modes to act as optical quantum memories. | Session 22: Optomechanics |

282 | Towards cavity quantum circuit electromechanics with millimiter-sized silicon nitride membranes | Peiter, Sarwan; Sanz Mora, Adrain; Steele, Gary | Based on a systematic characterization of the noisy acoustic signals disturbing our electromechanical circuit we design different methods to suppress them, including an original mass-spring system that enables keeping our device freely suspended inside the fridge. | Session 22: Optomechanics |

283 | Low-temperature diamond optomechanics | Cady, Jeff; Patel, Rishi; Safavi-Naeini, Amir; Jayich, Ania | As a step toward this goal, we design and fabricate single-crystal diamond optomechanical crystals which host GHz-scale mechanical modes with large zero-point strain and characterize them at 6K in a closed-cycle cryostat. | Session 22: Optomechanics |

284 | Magnomechanical cross-correlation thermometry | Potts, Clinton; Bittencourt, Victor; Viola Kusminskiy, Silvia; Davis, John | We propose a thermometric measurement of a hybrid system consisting of phonons coupled via the magnetostrictive interaction to magnons within a ferromagnetic sphere. | Session 22: Optomechanics |

285 | Ab initio finite-temperature and excited state computations by auxiliary-field quantum Monte Carlo | Zhang, Shiwei | I will discuss recent progress in generailizing the approach to non-zero temperatures. | Session 23: Precision Many-Body Physics: Ab Initio Methods |

286 | Effects of charge self-consistency in DFT+DMFT calculations for complex transition metal oxides | Hampel, Alexander; Beck, Sophie; Ederer, Claude | Here, we examine the effect of CSC in DFT+DMFT calculations compared to simpler one-shot calculations for two instructive example materials, CaVO 3 and LuNiO 3, to clarify in which cases the more complex CSC treatment is necessary and in which cases the simpler one-shot calculation is sufficient. | Session 23: Precision Many-Body Physics: Ab Initio Methods |

287 | DFT+eDMFT Study of Finite-temperature Properties of Filled Skutterudite CeGe4Pt12 | Quader, Khandker; Pascut, Gheorghe; Haule, Kristjan; Widom, Michael | Here we present results for CeGe 4Pt 12, namely the temperature dependence of spectral function, density of states, hybridization, effective mass, susceptibility, and resistivity, and compare with experiments. | Session 23: Precision Many-Body Physics: Ab Initio Methods |

288 | Efficient implementation of ab initio dynamical mean-field theory for periodic systems | Zhu, Tianyu; Cui, Zhi-Hao; Chan, Garnet | We present an ab initio quantum chemical framework for dynamical mean-field theory (DMFT) in periodic systems. | Session 23: Precision Many-Body Physics: Ab Initio Methods |

289 | Efficient Hybridization Fitting for Dynamical Mean-Field Theory via Semi-Definite Relaxation | Mejuto Zaera, Carlos; Zepeda-Núñez, Leonardo; Lindsey, Michael; Tubman, Norm; Whaley, Birgitta; Lin, Lin | In this work 1, we propose a nested optimization procedure using semi-definite relaxation which addresses and improves many of the issues that plague the optimization step in Hamiltonian-based DMFT. | Session 23: Precision Many-Body Physics: Ab Initio Methods |

290 | Electronic Structure of Strongly Correlated f-electron System: DFT+DMFT Approach | Singh, Vijay; Herath, Uthpala; Wah, Benny; Romero, Aldo; Park, Hyowon | I use dynamical mean-field theory (DMFT) in combination with DFT to compute the electronic structure of strongly correlated f-electron systems, specifically, rare-earth metals. | Session 23: Precision Many-Body Physics: Ab Initio Methods |

291 | Kondo route to quantum interference in prototypical single molecule transistors | Sen, Sudeshna; Mitchell, Andrew | In this talk I examine prototypical molecular junctions π-conjugated hydrocarbon molecular junctions using a combination of perturbative scaling, numerical renormalization group, and machine learning methods [1] after reducing them to effective multi-orbital impurity systems. | Session 23: Precision Many-Body Physics: Ab Initio Methods |

292 | Density Matrix Embedding Theory: From Lattice Models to Realistic Materials | Cui, Zhi-Hao; Zhu, Tianyu; Chan, Garnet | In this work, we will discuss a unified formalsim for both lattice models and realistic solids. | Session 23: Precision Many-Body Physics: Ab Initio Methods |

293 | Out of equilibrium thermometry with pump-probe x-ray photoemission spectroscopy | Matvyeyev, Oleh; Shvaika, Andrij; Freericks, James | We employ this effect in nonequilibrium, and describe an ultrafast "thermometer," which can determine the energy content of the conduction electrons with a nondestructive in situ measurement on an ultrafast time scale. | Session 23: Precision Many-Body Physics: Ab Initio Methods |

294 | Electronic structure of bulk manganese oxide and nickel oxide from coupled cluster theory | Gao, Yang; Sun, Qiming; Yu, Jason; Motta, Mario; McClain, James; White, Alec; Minnich, Austin; Chan, Garnet | We describe the ground- and excited-state electronic structure of bulk MnO and NiO using coupled cluster theory with single and double excitations (CCSD). | Session 23: Precision Many-Body Physics: Ab Initio Methods |

295 | The electronic structure of n-doped ABO3 perovskite metals from quantum Monte Carlo. | Bennett, Michael; Hu, Guoxiang; Ganesh, Panchapakesan; Krogel, Jaron | Here, we hypothesize that these systems are indeed self-hole doped and use diffusion Monte Carlo methods that include electron correlations exactly to gain clarity on the electronic/magnetic/structural transitions. | Session 23: Precision Many-Body Physics: Ab Initio Methods |

296 | ThetaPhi – a new program for calculation of Bardeen-Cooper-Schrieffer and Magnetic Superstructure Electronic States | Plekhanov, Evgeny; Tchougreeff, Andrei | We propose the Theta-Phi package [1] which addresses two of the most important extensions of the essentially single-particle mean-field paradigm of the computational solid state physics: the admission of the Bardeen-Cooper-Schrieffer electronic ground state and allowance of the magnetically ordered states with an arbitrary superstructure (pitch) wave vector. | Session 23: Precision Many-Body Physics: Ab Initio Methods |

297 | A Multiorbital Quantum Impurity Solver for General Interactions and Hybridizations | Eidelstein, Eitan; Gull, Emanuel; Cohen, Guy | We present a numerically exact Inchworm Monte Carlo method for equilibrium multiorbital quantum impurity problems with general interactions and hybridizations. | Session 23: Precision Many-Body Physics: Ab Initio Methods |

298 | T-linear resistivity and spectroscopy of hot metals and cold atoms: DMFT, SYK and beyond | Georges, Antoine | I will emphasize some commonalities between these approaches, and assess what is established at this point and which questions are still open. | Session 24: Precision Many-Body Physics: Dynamics and Finite Temperature Properties |

299 | SYK non-Fermi-liquid solution of the Hubbard model | Kim, Aaram; Werner, Philipp; Kozik, Evgeny | In the atomic (zero-hopping) limit, the solution corresponds to the unphysical branch of the Luttinger-Ward functional, for which the SYK model is the exact solution at the second order. | Session 24: Precision Many-Body Physics: Dynamics and Finite Temperature Properties |

300 | Variational Schrieffer-Wolff Transformations for Quantum Many-body Dynamics | Wurtz, Jonathan; Claeys, Pieter; Polkovnikov, Anatoli | Building on recent results for adiabatic gauge potentials, we propose a variational approach for computing the generator of Schrieffer-Wolff transformations, and demonstrate its accuracy in spin chains and fermionic systems. | Session 24: Precision Many-Body Physics: Dynamics and Finite Temperature Properties |

301 | Investigating non-integrable quantum many-body systems with sub-exponential computational effort | Hosur, Pavan | In this talk, an algorithm will be presented that enables quantitative predictions based on the ETH. | Session 24: Precision Many-Body Physics: Dynamics and Finite Temperature Properties |

302 | Space- and time-crystallization effects in multicomponent superfluids | Svistunov, Boris; Prokof’ev, Nikolai | We observe that space- and time-crystallization effects in multicomponent superfluids—while having the same physical origin and mathematical description as in the single-component case—are conceptually much more straightforward. | Session 24: Precision Many-Body Physics: Dynamics and Finite Temperature Properties |

303 | A generic quantum Monte Carlo approach for electronic correlations in out-of-equilibrium systems. | Bertrand, Corentin; Florens, Serge; Parcollet, Olivier; Waintal, Xavier | We propose a systematic approach to the non-equilibrium dynamics of strongly interacting many-body quantum systems, building upon the standard perturbative expansion in the Coulomb interaction. | Session 24: Precision Many-Body Physics: Dynamics and Finite Temperature Properties |

304 | Dynamic Behavior of Strongly Coupled Quantum Dots | Dumitrescu, Philipp; Maček, Marjan; Bertrand, Corentin; Waintal, Xavier; Parcollet, Olivier | We study a system of strongly correlated quantum dots, using a recently developed diagrammatic quantum Monte Carlo approach. | Session 24: Precision Many-Body Physics: Dynamics and Finite Temperature Properties |

305 | Dynamical properties of the spin-boson model using real-time quantum Monte Carlo | Goulko, Olga; Cohen, Guy; Goldstein, Moshe; Chen, Hsing-Ta | We present results for the real-time dynamics of the spin-boson model (a two-state system coupled to a bath of non-interacting harmonic modes) using the inchworm Monte Carlo algorithm. | Session 24: Precision Many-Body Physics: Dynamics and Finite Temperature Properties |

306 | Reconstructing Nonequilibrium Regimes of Quantum Many-Body Systems from the Analytical Structure of Perturbative Expansions | Bertrand, Corentin; Florens, Serge; Parcollet, Olivier; Waintal, Xavier | We present a systematic approach to the nonequilibrium dynamics of strongly interacting many-body quantum systems, building upon the standard perturbative expansion in the Coulomb interaction. | Session 24: Precision Many-Body Physics: Dynamics and Finite Temperature Properties |

307 | Time-symmetric stochastic action in curved phase-space | Drummond, Peter; Reid, Margaret; Joseph, Ria | Of more fundamental significance is that it provides an ontological model of reality [2] in cosmological models, and allows an interpretation of objective measurement without wave-function collapse. | Session 24: Precision Many-Body Physics: Dynamics and Finite Temperature Properties |

308 | Bounding the finite-size error for simulations of quantum many-body systems | Wang, Zhiyuan; Hazzard, Kaden; Feig, Michael | In this talk I present rigorous upper bounds on finite size error of local observables measured in gapped ground states of locally-interacting systems, as well as in real time quench dynamics simulations initiated from a product state. | Session 24: Precision Many-Body Physics: Dynamics and Finite Temperature Properties |

309 | Thermofield theory for finite-temperature many-body physics | Harsha, Gaurav; Henderson, Thomas; Scuseria, Gustavo | In this talk, I will present our recently developed framework (arXiv:1901.06753 and 1907.11286) which shows how the thermofield theory can be utilized to construct finite-temperature generalizations of ground-state wave function methods. | Session 24: Precision Many-Body Physics: Dynamics and Finite Temperature Properties |

310 | Analytical continuation of transport functions with deep neural networks | Verret, Simon; Nourafkan, Reza; Desrosiers, Samuel; Tremblay, Andre-Marie | In this work, we extend the use of deep neural networks to the case of the longitudinal conductivity, in particular the DC-conductivity. | Session 24: Precision Many-Body Physics: Dynamics and Finite Temperature Properties |

311 | The variational and diagrammatic quantum Monte Carlo approach to the many-electron problem | Chen, Kun; Haule, Kristjan | Here we show that combining both, and introducing a diagrammatic quantum Monte Carlo method, results in a powerful and accurate solver to the generic solid state problem, in which a macroscopic number of electrons interact by the long-range Coulomb repulsion. | Session 25: Precision Many-Body Physics: Novel Methods and Algorithms |

312 | Modern diagrammatic many body techniques. | Rossi, Riccardo; Simkovic, Fedor; Ferrero, Michel | In this talk I will discuss recent progress on the development of unbiased diagrammatic techniques for strongly-correlated many-body systems. | Session 25: Precision Many-Body Physics: Novel Methods and Algorithms |

313 | Faster-than-the-Clock Quantum Monte Carlo | Simkovic, Fedor; Ferrero, Michel; Rossi, Riccardo | In this talk we present a way to naturally merge and extend Monte Carlo accelation techniques with the sampling of set functions, which can be viewed as the partition function of a bosonic system. | Session 25: Precision Many-Body Physics: Novel Methods and Algorithms |

314 | A light weight regularization for wave function parameter gradients in quantum Monte Carlo | Pathak, Shivesh; Wagner, Lucas | In this work we derive a simple regularization of the naive estimator which is easy to implement and has a neglible bias. | Session 25: Precision Many-Body Physics: Novel Methods and Algorithms |

315 | Measuring Rényi Entanglement Entropies in Lattice Worm Algorithm Quantum Monte Carlo | Casiano-Diaz, Emanuel; Herdman, Chris; Del Maestro, Adrian | In this talk we report on an extension of lattice worm algorithm quantum Monte Carlo that allows for the exact simulation of interacting bosons at zero temperature. | Session 25: Precision Many-Body Physics: Novel Methods and Algorithms |

316 | Diagrammatic Monte Carlo for Molecules | Li, Jia; Wallerberger, Markus; Gull, Emanuel | In this talk, I aim to introduce our DiagMC implementation for multi-orbital systems, and present our results when it is applied to realistic molecular systems. | Session 25: Precision Many-Body Physics: Novel Methods and Algorithms |

317 | Hybridizing Pseudo-Hamiltonians and Non-local Pseudopotentials in Diffusion Monte Carlo | Krogel, Jaron; Reboredo, Fernando | In this work, we explore the hybridization of NLPPs and PHs in an attempt to reduce the non-local components. | Session 25: Precision Many-Body Physics: Novel Methods and Algorithms |

318 | Excitations with Diffusion Monte Carlo: a bottom-up approach. | Reboredo, Fernando | In this talk we will discuss an alternative approach: how to extract excited state properties as an observable of the many-body ground state evaluated within a standard DMC method. | Session 25: Precision Many-Body Physics: Novel Methods and Algorithms |

319 | Diagrammatic Monte Carlo for real materials | Azadi, Sam; Davydov, Arkadiy; Kozik, Evgeny | We present a systematic method for reaching beyond the GW approximation by Diagrammatic Monte Carlo (DiagMC) for first-principle simulations of real materials. | Session 25: Precision Many-Body Physics: Novel Methods and Algorithms |

320 | Evaluation of arbitrary Feynman graphs via algorithmic methods. | LeBlanc, James | In this talk we present an algorithm for fully symbolic evaluation of arbitrary Feynman diagrams that overcomes this issue, and many others. | Session 25: Precision Many-Body Physics: Novel Methods and Algorithms |

321 | Diagrammatic Monte Carlo for attractively interacting fermions | Spada, Gabriele; Rossi, Riccardo; Ohgoe, Takahiro; Simkovic, Fedor; Ferrero, Michel; Van Houcke, Kris; Werner, Félix | I will present results for two cases of experimental relevance: The normal phase of the unitary Fermi gas, and the superfluid phase of the attractive Hubbard model. | Session 25: Precision Many-Body Physics: Novel Methods and Algorithms |

322 | Quantum Phase Transitions Go Dynamical | Gurarie, Victor | Quantum Phase Transitions Go Dynamical | Session 26: Precision many-body physics: Dynamics of 1D quantum systems |

323 | Information measures for local quantum phase transitions: Lattice bosons in a one-dimensional harmonic trap | Zhang, Yicheng; Vidmar, Lev; Rigol, Marcos | We study ground-state quantum entanglement in the 1D Bose-Hubbard model in the presence of a harmonic trap. | Session 26: Precision many-body physics: Dynamics of 1D quantum systems |

324 | Low-energy physics in the critical phase of the bilinear-biquadratic spin-1 chain | Binder, Moritz; Barthel, Thomas | We use an efficient density matrix renormalization group (DMRG) algorithm to compute precise dynamic structure factors for the bilinear-biquadratic spin-1 chain with Hamiltonian H = Σ i [cos θ (Si * Si+1) + sin θ (Si * Si+1)2]. | Session 26: Precision many-body physics: Dynamics of 1D quantum systems |

325 | Entanglement decomposition for the simulation of quantum many-body dynamics | Barthel, Thomas | I will show how this problem can be addressed through entanglement decomposition. | Session 26: Precision many-body physics: Dynamics of 1D quantum systems |

326 | Energy resolved many-body localization emulated with a superconducting quantum processor | Cheng, Chen; Guo, Qiujiang; Sun, Zhenghang; Mondaini, Rubem; Fan, Heng; Wang, Haohua | In this work, taking advantages of the large degree of tunability of the latter platform and using up to 19 qubits, we report on an energy resolved MBL transition. | Session 26: Precision many-body physics: Dynamics of 1D quantum systems |

327 | Exact two-spinon contribution to the longitudinal dynamical structure factor of the anisotropic XXZ model with comparison to DMRG simulations | Weichselbaum, Andreas; Zaliznyak, Igor; Castillo, Isaac; Caux, Jean-Sébastien | Exact two-spinon contribution to the longitudinal dynamical structure factor of the anisotropic XXZ model with comparison to DMRG simulations | Session 26: Precision many-body physics: Dynamics of 1D quantum systems |

328 | Nonequilibrium steady state of quantum impurities: A numerically-exact tensor-network approach | Lotem, Matan; Schwarz, Frauke; Weichselbaum, Andreas; Von Delft, Jan; Goldstein, Moshe | In order to study such systems, we employ a novel approach where the impurity is coupled to a finite number of lead levels, which in turn are incoherently coupled to baths, resulting in a Lindblad master equation for the density operator of an effective 1D system describing the impurity and the finite leads. | Session 26: Precision many-body physics: Dynamics of 1D quantum systems |

329 | Anomalous transport and hydrodynamics in 1D quantum systems | Vasseur, Romain; Agrawal, Utkarsh; Gopalakrishnan, Sarang; Ware, Brayden | In this talk, I will explain how anomalous transport can emerge in one-dimensional quantum systems at finite temperature, due to hierarchies of quasiparticle excitations. | Session 26: Precision many-body physics: Dynamics of 1D quantum systems |

330 | Universal scrambling in gapless quantum spin chains | Nakamura, Shunsuke; Iyoda, Eiki; Deguchi, Tetsuo; Sagawa, Takahiro | In this study, we focus on the one-dimensional spin-1/2 antiferromagnetic XXZ model and investigate the relationship between scrambling and the scale invariance. | Session 26: Precision many-body physics: Dynamics of 1D quantum systems |

331 | Asymmetry in Forward/Backward Transition Times in Multi-Particle System with Interactions | Shin, Jaeoh; Kolomeisky, Anatoly | We developed a fully analytical theoretical analysis that can describe the observed results. | Session 26: Precision many-body physics: Dynamics of 1D quantum systems |

332 | Entanglement and matrix elements of observables in interacting integrable systems | LeBlond, Tyler; Mallayya, Krishnanand; Vidmar, Lev; Rigol, Marcos | We study the bipartite von Neumann entanglement entropy and matrix elements of local operators in the eigenstates of an interacting integrable Hamiltonian (the spin-1/2 XXZ chain), and contrast their behavior with that of quantum chaotic systems. | Session 26: Precision many-body physics: Dynamics of 1D quantum systems |

333 | Nonequilibrium dynamics of static electron-phonon models from Monte Carlo simulations | Weber, Manuel; Freericks, James | In this talk, we present an exact Monte Carlo method to simulate the nonequilibrium dynamics of electron-phonon models in the adiabatic limit of zero phonon frequency. | Session 26: Precision many-body physics: Dynamics of 1D quantum systems |

334 | Heating rates in periodically driven strongly interacting quantum many-body systems | Mallayya, Krishnanand; Rigol, Marcos | We study heating rates in strongly interacting quantum lattice systems in the thermodynamic limit. | Session 26: Precision many-body physics: Dynamics of 1D quantum systems |

335 | Particle transmutations in flat-band lattices: bosons to fermions, fermions to composite fermions | Maiti, Saurabh; Sedrakyan, Tigran | In this talk, we will draw our attention to the consequences of one particular scheme that is designed to be applicable for various interesting 2D lattices. | Session 27: Precision many-body physics: Non-perturbative QFT |

336 | Coherent states, Gram matrix, and Hofstadter butterfly with flat band | Xu, Youjiang; Pu, Han | We find that the Gram matrices of certain subsets of coherent states, whose associating eigenvalues form a lattice on the complex plane, can be interpreted as Hamiltonians which govern the dynamics of a particle hopping around the lattice under a gauge field. | Session 27: Precision many-body physics: Non-perturbative QFT |

337 | Chern-Simons fermionization approach to the chiral spin liquid on a frustrated square lattice with moat band | Wang, Rui; Xie, Z. Y.; Zou, Haiyuan; Su, Wei; Sedrakyan, Tigran; Wang, Baigeng; Xing, D. Y. | We analytically derive the low-energy effective field theory, and predict a possible non-uniform chiral spin-liquid (CSL) ground state. | Session 27: Precision many-body physics: Non-perturbative QFT |

338 | Viscous Topological Electromagnetic Phases of Matter | Jacob, Zubin | We present the fundamental model of a topological electromagnetic phase of matter: viscous Maxwell-Chern-Simons theory. | Session 27: Precision many-body physics: Non-perturbative QFT |

339 | Imaging impurities at quantum Hall edges in graphene: Dissipation rings induced by forward scattering | Zhang, Gu; Gornyi, Igor; Mirlin, Alexander | Motivated by the recent experiment by Marguerite et al. on imaging in graphene samples, we investigate theoretically the dissipation induced by resonant impurities in the quantum Hall regime. | Session 27: Precision many-body physics: Non-perturbative QFT |

340 | Repulsive Casimir force in time-reversal symmetry broken media | Li, Zhou; Jacob, Zubin | When one of the silicon plates is replaced by a medium with time-reversal symmetry breaking (usually achieved by an external magnetic field), we show that the Casimir force can become repulsive. | Session 27: Precision many-body physics: Non-perturbative QFT |

341 | Supersymmetry approach to interacting disordered systems: the SYK model | Sedrakyan, Tigran; Efetov, Konstantin | In this talk, we propose a new, supersymmetric sigma-model representation for interacting disordered fermion systems. | Session 27: Precision many-body physics: Non-perturbative QFT |

342 | Spin and charge correlations across the metal-to-insulator crossover in the half-filled 2d Hubbard model | Kim, Aaram; Simkovic, Fedor; Kozik, Evgeny | We study signatures of this crossover in spin and charge correlation functions and present results obtained with controlled accuracy using diagrammatic Monte Carlo in the range of parameters amenable to experimental verification with ultracold atoms in optical lattices. | Session 27: Precision many-body physics: Non-perturbative QFT |

343 | Equation of state and entropy of the doped 2d Hubbard Model | Lenihan, Connor; Kim, Aaram; Kozik, Evgeny; Simkovic, Fedor | We study thermodynamic properties of the doped Hubbard model with nearest-neighbour hopping on the square lattice by Diagrammatic Monte Carlo and obtain results with controlled error bars in the thermodynamic limit. | Session 27: Precision many-body physics: Non-perturbative QFT |

344 | Pseudogap effects in the unitary Fermi gas and in strongly interacting 2D Fermi gases | Jensen, Scott; Alhassid, Yoram; Gilbreth, Christopher | We use similar methods to study pseudogap effects in interacting 2D Fermi gases along the Bardeen-Cooper-Schrieffer (BCS) to Bose-Einstein condensation (BEC) crossover. | Session 27: Precision many-body physics: Non-perturbative QFT |

345 | Implicit renormalization approach to the problem of Cooper instability | Chubukov, Andrey; Prokof’ev, Nikolai; Svistunov, Boris | We discuss the problem of determining Tc from known system properties at temperatures T >> Tc, and stress that this cannot be done reliably by following the standard protocol of solving for the largest eigenvalue of the original gap-function equation. | Session 27: Precision many-body physics: Non-perturbative QFT |

346 | Photoinduced superconducting-like properties: η-pairing and charge stiffness in optically driven Mott-Hubbard systems | Kaneko, Tatsuya; Yunoki, Seiji; Millis, Andrew | We theoretically investigate the electron-electron (superconducting) pairing correlations and charge stiffness in the one-dimensional Hubbard model subjected to a pump electric field. | Session 27: Precision many-body physics: Non-perturbative QFT |

347 | Pairing tendencies in two-orbital Hubbard models with reduced sign problem | Huang, Edwin; Vaezi, Abolhassan | How unconventional superconductivity arises from strong repulsive interactions is a central question in the study of high-temperature superconductivity. | Session 27: Precision many-body physics: Non-perturbative QFT |

348 | DMRG Approach to Optimizing Two-Dimensional Tensor Networks | Hyatt, Katharine; Stoudenmire, Miles | We present results for several 2D spin models and discuss possible extensions and applications. | Session 28: Precision many-body physics: Novel methods and algorithms |

349 | Diagrammatic Monte Carlo for the Hubbard Model: Recent developments | Ferrero, Michel; Simkovic, Fedor; ROSSI, RICCARDO | In this talk, I will present recent developments of the diagrammatic Monte Carlo method applied to the Hubbard model. | Session 28: Precision many-body physics: Novel methods and algorithms |

350 | Differentiable Programming Tensor Networks | Liao, Hai-Jun; Liu, Jin-Guo; Wang, Lei; Xiang, Tao | We present theory and practice of programming tensor network algorithms in a fully differentiable way. | Session 28: Precision many-body physics: Novel methods and algorithms |

351 | Simulating open quantum many-body systems using matrix product state purifications | Zhang, Yikang; Zhang, Xin; Barthel, Thomas | We introduce a new algorithm based on matrix product state purifications to simulate open many-body systems. | Session 28: Precision many-body physics: Novel methods and algorithms |

352 | Compressing Infinite Matrix Product Operators with an Application To Twisted Bilayer Graphene | Parker, Daniel; Cao, Xiangyu; Soejima, Tomohiro; Zaletel, Michael | We present a new method for compressing matrix product operators (MPOs) which represent sums of local terms, such as Hamiltonians. | Session 28: Precision many-body physics: Novel methods and algorithms |

353 | Embedding via the Exact Factorization Approach | Lacombe, Lionel; Maitra, Neepa | We present a quantum electronic embedding method derived from the exact factorization approach to calculate static properties of a many-electron system. | Session 28: Precision many-body physics: Novel methods and algorithms |

354 | Putting modern many-body methods to the test: the two-dimensional Hubbard model at weak coupling | Schaefer, Thomas; Wentzell, Nils; Simkovic, Fedor; He, Yuan-Yao; Hille, Cornelia; Eckhardt, Christian; Arzhang, Behnam; Harkov, Viktor; Le Régent, François-Marie; Kirsch, Alfred; Wang, Yan; Kim, Aaram; Kozik, Evgeny; Stepanov, Evgeny; Kauch, Anna; Andergassen, Sabine; LeBlanc, James; Zhang, Shiwei; Tremblay, Andre-Marie; Ferrero, Michel; Parcollet, Olivier; Georges, Antoine | We provide a detailed synopsis and comparison of a comprehensive set of state-of-the art many body techniques for the weak-coupling regime of the two dimensional half-filled Hubbard model on a square lattice. | Session 28: Precision many-body physics: Novel methods and algorithms |

355 | A time-dependent tunneling approach to RIXS and other core-hole spectroscopies | Feiguin, Adrian; Zawadzki, Krissia; Nocera, Alberto | We introduce a numerical approach to calculate the Resonant Inelastic X-Ray Scattering (RIXS) in strongly correlated systems. | Session 28: Precision many-body physics: Novel methods and algorithms |

356 | A time and momentum resolved tunneling spectroscopy approach to non-equilibrium phenomena in correlated systems | Zawadzki, Krissia; Feiguin, Adrian | We introduce a numerical method to calculate the spectral density of correlated systems using a tunneling approach efficiently implemented through the time-dependent Density Matrix Renormalization-Group (tDMRG). | Session 28: Precision many-body physics: Novel methods and algorithms |

357 | Effect of Electron-Phonon Interactions in the Holstein Model on a Staggered-Flux Square Lattice | Zhang, Yuxi; Scalettar, Richard; Guo, Huaiming | Here, we use the unbiased determinant Quantum Monte Carlo (DQMC) method to study the Holstein model on a half-filled staggered-flux square lattice, and compare with the results on the honeycomb lattice. | Session 28: Precision many-body physics: Novel methods and algorithms |

358 | The effect of disorder on the phase diagrams of hard-core lattice bosons with cavity-mediated long-range and nearest-neighbor interactions | Zhang, Chao; Rieger, Heiko | We use quantum Monte Carlo simulations with the worm algorithm to study the phase diagram of a two-dimensional Bose-Hubbard model with cavity-mediated long-range interactions and uncorrelated disorder in the hard-core limit. | Session 28: Precision many-body physics: Novel methods and algorithms |

359 | JILA’s search for the electron’s electric dipole moment: a novel approach to searches for new physics | Roussy, Tanya; Cairncross, William; Palken, Daniel; Brubaker, Benjamin; Gresh, Daniel; Grau, Matthew; Cossel, Kevin; Ng, Kia Boon; Shagam, Yuval; Zhou, Yan; Flambaum, Victor; Ye, Jun; Cornell, Eric | In this talk I will introduce the essence of our measurement as well as our methods for constraining both dark matter and parity-violating physics. | Session 29: Precision measurements for fundamental physics, interferometry, and trapped ions |

360 | Towards a More Sensitive Measurement of the Atomic Electric Dipole Moment of Radium-225 | Ready, Roy; Bailey, Kevin; Bishof, Michael; Booth, Donald; Dietrich, Matthew; Mueller, Peter; O’Connor, Thomas; Rabga, Tenzin; Singh, Jaideep | Towards a More Sensitive Measurement of the Atomic Electric Dipole Moment of Radium-225 | Session 29: Precision measurements for fundamental physics, interferometry, and trapped ions |

361 | Modeling a dual-Sagnac interferometer for rotation sensing | Henry, Charles; Thomas, Stephen; Sapp, Robert; Clark, Charles; Edwards, Mark | We have mapped out the region of validity of this model by direct numerical simulation using the 3D Gross-Pitaevskii equation. | Session 29: Precision measurements for fundamental physics, interferometry, and trapped ions |

362 | Mechanism for producing smooth flow by stirring a racetrack BEC | Edwards, Mark; Fogarty, Daniel; Clark, Charles | We studied the production of smooth flow in a Bose-Einstein-condensed (BEC) gas in a racetrack atom-circuit potential. | Session 29: Precision measurements for fundamental physics, interferometry, and trapped ions |

363 | Phase-sensitive amplification and SU(1,1) interferometry via multimode four-wave mixing | Knutson, Erin; Cross, J. Sam; Wyllie, Sara; Glasser, Ryan | We demonstrate a useful phase dependence in a multi-pump four-wave mixing configuration. | Session 29: Precision measurements for fundamental physics, interferometry, and trapped ions |

364 | Search for non-Newtonian gravity with optically-levitated microspheres | Blakemore, Charles; Fieguth, Alexander; Kawasaki, Akio; Martin, Denzal; Priel, Nadav; Rider, Alexander; Gratta, Giorgio | We have constructed an ultra-sensitive force sensor based on optically-levitated microspheres with a force sensitivity of ∼ 10−17 N/√Hz for the purposed of investigating non-Newtonian forces in the 1-100 μm range. | Session 29: Precision measurements for fundamental physics, interferometry, and trapped ions |

365 | Ultrasensitive torque detection and ultrafast rotation with an optically levitated nanoparticle | Ahn, Jonghoon; Xu, Zhujing; Bang, Jaehoon; Ju, Peng; Gao, Xingyu; Li, Tongcang | Here, we develop an ultrasensitive torque sensor with an optically levitated nanoparticle in vacuum and experimentally demonstrate a torque sensitivity of (4.2 ± 1.2) × 10 -27 Nm / sqrt(Hz) at room temperature [1] without the need of comlex nanofabrication or cryogenic cooling. | Session 29: Precision measurements for fundamental physics, interferometry, and trapped ions |

366 | Towards mass sensing using cavity optomechanics readout | Rej, Ewa; Yuksel, Mert; Fon, Warren; Matheny, Matthew; Roukes, Michael | I will present results showing NEMS based mass spectrometry of individual proteins and explain how the mass resolution is governed by the phase noise of the system, with contributions from the resonator itself, readout circuitry and thermomechanical noise. | Session 29: Precision measurements for fundamental physics, interferometry, and trapped ions |

367 | Searching for scalar dark matter with compact mechanical resonators | Manley, Jack; Stump, Russell; Wilson, Dalziel; Grin, Daniel; Singh, Swati | We discuss the viability of laboratory-scale mechanical resonators as detectors for ultralight scalar dark matter. | Session 29: Precision measurements for fundamental physics, interferometry, and trapped ions |

368 | Realization of a second-generation scheme for dissipative entanglement of hyperfine beryllium-ion qubits | Cole, Daniel; Erickson, Stephen; Horn, Karl; Reiter, Florentin; Hou, Panyu; Wu, Jenny; Koch, Christiane; Wilson, Andrew; Leibfried, Dietrich | In particular, we will present experimental realization of a ‘second generation’ scheme for dissipative production of an entangled singlet state that offers an improvement in speed and fidelity, along with reduced experimental complexity [2]. | Session 29: Precision measurements for fundamental physics, interferometry, and trapped ions |

369 | Surface-science studies of electric-field noise from ion-trap electrodes | Hite, Dustin; McKay, Kyle; Kent, Phililp; Pappas, David | In this talk, I will describe the composition and surface-potential landscape of typical as-fabricated and treated ion-trap electrodes and show results where we have demonstrated the efficacy to use trapped ions as a probe to nearby surfaces. | Session 29: Precision measurements for fundamental physics, interferometry, and trapped ions |

370 | Towards Improved Quantum Simulations and Sensing via Parametric Amplification | Affolter, Matthew; Jordan, Elena; Gilmore, Kevin; Burd, Shaun; Bollinger, John | Here we discuss preliminary experiments attempting to enhance spin-motion coupling in large ion crystals via parametric amplification without a reduction in the spin coherence. | Session 29: Precision measurements for fundamental physics, interferometry, and trapped ions |

371 | Quantum measurement and many-body dynamics for the Dicke model | Choi, Yunjin; Kelly, Shane; Tsai, Shan-Wen | Treating the spin subsystem as the main system of interest, we consider the bosonic degrees of freedom as an environment that can be controlled and probed to some extent. | Session 29: Precision measurements for fundamental physics, interferometry, and trapped ions |

372 | Study of the mechanical loss of amorphous mirror coatings for gravitational wave detectors using two level system model | Jiang, Jun; Mishkin, Alec; Prasai, Kiran; Bassiri, Riccardo; Fejer, Martin; Cheng, Hai-Ping | [PRL 123.4,045501] In this work, we further refine the RMC models of 50% ZrO 2 doped Ta 2O 5 with first-principles atomic structure relaxation and improve the previous TLS model by correctly taking into account two relaxation times associated with one asymmetrical TLS transition. | Session 29: Precision measurements for fundamental physics, interferometry, and trapped ions |

373 | Atomic Tritium Production and Trapping for Neutrino Mass Measurement in Project 8 | Lindman, Alec | I will discuss our approach to this large-volume atomic CRES experiment, focusing on production and handling techniques for recombination-prone tritium atoms. | Session 29: Precision measurements for fundamental physics, interferometry, and trapped ions |

374 | Robust and high-fidelity quantum entangling gate with neutral Rydberg atoms | Shi, Xiao-Feng | In this talk, I will show some theoretical proposals of quantum entangling gate with neutral Rydberg atoms that have high intrinsic fidelity and are robust against dephasing from the atomic motion. | Session 30: Quantum Computing, Communication, and Information in AMO Systems |

375 | Towards Trapping Electrons in Paul Traps for Quantum Computing | Guo, Jinen; Matthiesen, Clemens; Haeffner, Hartmut | From the simulations, we determine the trap depth and explore the validity of pseudopotential approximation. | Session 30: Quantum Computing, Communication, and Information in AMO Systems |

376 | Controlling entanglement sudden death in two coupled atoms interacting off-resonance with a radiation field | Sadiek, Gehad; Al-Dress, Wiam | We utilize our exact analytical solution for the time evolution of the system to show how entanglement sudden death (ESD), which represents a major threat to QIP, can be efficiently controlled by tuning atom-atom coupling and non-zero detuning. | Session 30: Quantum Computing, Communication, and Information in AMO Systems |

377 | Realizing the Hayden-Preskill Protocol with Coupled Dicke Models | Cheng, Yanting; Liu, Chang; guo, Jinkang; Chen, Yu; Zhang, Pengfei; Zhai, Hui | Here we propose to realize this decoding protocol in a physical system of two Dicke models, with two cavity fields prepared in a thermofield double state. | Session 30: Quantum Computing, Communication, and Information in AMO Systems |

378 | High-fidelity ground state preparation of single neutral atom in an optical tweezer | Luo, Xiwang; Raizen, Mark; Zhang, Chuanwei | Here we propose that supersymmetry—a theoretical framework developed in particle physics—can be used for ultra-high fidelity initialization of neutral-atom qubits. | Session 30: Quantum Computing, Communication, and Information in AMO Systems |

379 | A simple embedding scheme for quantum computer simulations of molecules | Daniel, Christina; Weber, Manuel; Zgid, Dominika; Freericks, James | In this work, we focus on the question of whether one can easily improve the accuracy of this calculation via an embedding strategy. | Session 30: Quantum Computing, Communication, and Information in AMO Systems |

380 | Memory-enhanced quantum communication using diamond quantum networks | Nguyen, Christian; Bhaskar, Mihir; Riedinger, Ralf; Machielse, Bartholomeus; Levonian, David; Knall, Erik; Park, Hongkun; Englund, Dirk; Loncar, Marko; Sukachev, Denis; Lukin, Mikhail | Here, we present our approach towards building a quantum repeater using silicon-vacancy color centers (a solid-state quantum memory) integrated into diamond nanophotonic cavities. | Session 30: Quantum Computing, Communication, and Information in AMO Systems |

381 | Continuous protection of a quantum state from inhomogeneous dephasing | Finkelstein, Ran; Lahad, Ohr; Davidson, Omri; Poem, Eilon; Firstenberg, Ofer | Here we present several methods to overcome the effective decrease of both atom-photon cross-section [1] and coherence time in vapors, and in fact in any inhomogeneously broadened atom-like system. | Session 30: Quantum Computing, Communication, and Information in AMO Systems |

382 | Correlation spectroscopy as a tool for comparing optical clocks | Kim, May; Clements, Ethan; Cui, Kaifeng; Hankin, Aaron; Brewer, Samuel; Chen, Jwo-Sy; Hume, David; Leibrandt, David | We demonstrate this technique using two Al+ quantum-logic clocks separated in space by a few meters. | Session 30: Quantum Computing, Communication, and Information in AMO Systems |

383 | Correlation Spectroscopy Between Two 27Al+ Quantum-Logic Clocks | Clements, Ethan; Kim, May; Cui, Kaifeng; Hankin, Aaron; Brewer, Samuel; Chen, Jwo-Sy; Leibrandt, David; Hume, David | Here, we present a demonstration of correlation spectroscopy between two independent 27Al + optical atomic clocks separated by a few meters. | Session 30: Quantum Computing, Communication, and Information in AMO Systems |

384 | Conversion of position correlation into polarization entanglement | Perumangatt, Chithrabhanu; Lohrmann, Alexander; Ling, Alexander | We present a method to convert position correlation of photon-pairs into polarization entanglement. | Session 30: Quantum Computing, Communication, and Information in AMO Systems |

385 | Toward quantum-logic spectroscopy of single molecular ions in a cryogenic ion trap | Chaffee, Dalton; Collopy, Alejandra; Leibfried, Dietrich; Leibrandt, David; Chou, Chin-wen | Here, we present progress of the design and construction of a cryogenic ion trap apparatus for more versatile loading of molecular ions and better control of their states. | Session 30: Quantum Computing, Communication, and Information in AMO Systems |

386 | Towards quantum logic spectroscopy of multi-ion arrays | Cui, Kaifeng; Boyce, Kevin; Leibrandt, David; Hume, David | We describe a new approach for precision spectroscopy of trapped ions using quantum logic. | Session 30: Quantum Computing, Communication, and Information in AMO Systems |

387 | Direct characteristic-function tomography of quantum states of the trapped-ion motional oscillator | Flühmann, Christa | In this talk I will present recent experiments analyzing direct phase-space tomography of the motion of a single trapped Ca + ion. | Session 30: Quantum Computing, Communication, and Information in AMO Systems |

388 | High dimensional entanglement between a photon and a multiplexed atomic quantum memory | Li, Chang; Wu, Yukai; Chang, Wei; Zhang, Sheng; Duan, Luming | Our work provides a prominent method to generate multidimensional entanglement between the flying photonic qubits and the atomic quantum interfaces, a key step toward quantum networks. | Session 30: Quantum Computing, Communication, and Information in AMO Systems |

389 | Atom arrays of ultracold strontium: new tools for many-body physics and metrology | Kaufman, Adam | In this talk, I will describe our group’s progress towards developing these tools for a new atomic species, strontium. | Session 31: Quantum Simulation and Computation with Neutral Atom Optical Tweezer Arrays |

390 | Rydberg mediated entanglement in a two-dimensional neutral atom qubit array | Saffman, Mark | We demonstrate high fidelity two-qubit Rydberg blockade and entanglement in a two-dimensional qubit array. | Session 31: Quantum Simulation and Computation with Neutral Atom Optical Tweezer Arrays |

391 | Quantum Science with Ytterbium Rydberg Atoms in Optical Tweezer Arrays | Burgers, Alex | We use the narrow intercombination line, 1S 0 – 3P 1, for cooling and imaging atoms in magic-wavelength (532 nm) optical tweezers and achieve very high atom detection fidelity [1]. | Session 31: Quantum Simulation and Computation with Neutral Atom Optical Tweezer Arrays |

392 | Quantum Science with Tweezer Arrays | Endres, Manuel | I will outline how we can improve on these issues and at the same time open new avenues in quantum metrology by using alkaline earth atoms, followed by an overview of recent results: 1) A record in imaging-fidelity for neutral atoms and demonstration of narrow-line cooling in tweezers [2,3]. | Session 31: Quantum Simulation and Computation with Neutral Atom Optical Tweezer Arrays |

393 | Hyperbolic Lattices in Circuit QED | Kollar, Alicia | Here, we highlight the previously-overlooked property that these lattice sites are deformable and permit tight-binding lattices which are unattain- able, even in solid-state systems. | Session 32: Quantum Simulators for Quantum Complex Network Science |

394 | Optically networked color centers | Vuckovic, Jelena | To achieve this goal, we have been studying color centers in diamond and silicon carbide, in combination with novel fabrication techniques, and our photonics inverse design approach. | Session 32: Quantum Simulators for Quantum Complex Network Science |

395 | Entangled Radiofrequency-Photonic Sensor Network | Zhang, Zheshen; Xia, Yi; Li, Wei; Clark, William; Hart, Darlene; Zhuang, Quntao | Here, we propose and experimentally demonstrate a reconfigurable RF-photonic sensor network comprised of three entangled sensor nodes. | Session 32: Quantum Simulators for Quantum Complex Network Science |

396 | Quantum Optical Neural Network with Multimode Cavity QED | Guo, Yudan; Marsh, Brendan; Kroeze, Ronen; Ganguli, Surya; Keeling, Jonathan; Lev, Benjamin | We present our theoretical and experimental studies of photon-mediated interactions with atoms trapped inside a multimode confocal cavity. | Session 32: Quantum Simulators for Quantum Complex Network Science |

397 | Complex Networks in Multimode Continuous Variable Quantum Optics | Parigi, Valentina | Complex Networks in Multimode Continuous Variable Quantum Optics | Session 32: Quantum Simulators for Quantum Complex Network Science |

398 | Fermionic superfluidity in confined one-dimensional spin-imbalanced systems: A configuration-space Hartree-Fock-Bogoliubov approach | Patton, Kelly; Sheehy, Daniel | We study pairing and density correlations in imbalanced one-dimensional Fermi systems with short-range interactions that are spatially confined by either a harmonic or a hard-wall (or "box") trapping potential. | Session 33: Strongly Interacting Bose and Fermi Gases |

399 | Ferromagnetism in the SU(n) Hubbard model with nearly flat band | Tamura, Kensuke; Katsura, Hosho | Here we study the model on a one-dimensional Tasaki lattice and derive rigorous results for the ground states. | Session 33: Strongly Interacting Bose and Fermi Gases |

400 | One-dimensional Spin-polarized Fermi Gas near resonances | Sekino, Yuta; Nishida, Yusuke | We study a quantum field theory for resonantly interacting spinless fermions in one dimension. | Session 33: Strongly Interacting Bose and Fermi Gases |

401 | Dynamical Fermionization and Scaling Behaviour for a Strongly Repulsive Spinor Gas after Quench | Alam, Shah Saad; Skaras, Tim; Yang, Li; Pu, Han | We extend this study to a harmonically confined 1D spinor gas in the hard core and strongly repulsive regimes, and analytically prove the existence of dynamical fermionization. | Session 33: Strongly Interacting Bose and Fermi Gases |

402 | Dynamics of Macroscopic Quantum Tunneling from Superfluid to Mott Insulating Regimes | Alcala, Diego; McLain, Marie; Carr, Lincoln | Specifically, we study bosons in a quasi one-dimensional meta-stable trap, modeled by the Bose-Hubbard Hamiltonian, using matrix product state methods which grant access to many-body observables, and compare to mean-field, which fails for strong interactions. | Session 33: Strongly Interacting Bose and Fermi Gases |

403 | On the possible existence of an effective momentum-momentum coupling in a correlated electronic system | Caldeira, Amir; Victa Trevisan, Thais; Monteiro, Gustavo | In this talk, we present a study on how to partly reincorporate the effects of localized binding electrons on the dynamics of their itinerant counterparts in Hubbard-like Hamiltonians. | Session 33: Strongly Interacting Bose and Fermi Gases |

404 | Superfluid vs. Mott-Insulator Phase in Imperfect Multi-Rods Lattices | Rodríguez-López, Omar; Solís, M. A. | We employ the Diffusion Monte Carlo (DMC) method to estimate the physical properties exactly up to a statistical error. | Session 33: Strongly Interacting Bose and Fermi Gases |

405 | Optimized pairing from repulsive interactions in Fermi-Hubbard ladders and its static and dynamic signatures | Koehler, Thomas; Kantian, Adrian | In this talk we will present such results for the Fermi-Hubbard ladder, which is proven to have unconventional pairing, and that allows us to optimize this pairing via changes in ladder structure and interactions based on highly accurate numerical theory such as matrix-product-state-based methods. | Session 33: Strongly Interacting Bose and Fermi Gases |

406 | Matrix Product States in the Continuum and Cold Atomic Gases | Peacock, Joseph; Ljepoja, Aleksandar; Bolech, C. | In this talk we present an update on the continuum formulation of Matrix Product States (cMPS) to describe one dimensional dilute quantum gases. | Session 33: Strongly Interacting Bose and Fermi Gases |

407 | Spin Imbalance Effect in a Mixture of Spinor Fermions and Hard-Core Bosons | Guerrero Suárez, Ramón; Mendoza Arenas, Juan; Franco Pe?aloza, Roberto; Silva Valencia, Jereson | Mixtures of bosons and fermions have been the subject of research since the first studies of 3He- 4He system. | Session 33: Strongly Interacting Bose and Fermi Gases |

408 | Ab initio auxiliary-field quantum Monte Carlo study of finite-temperature properties of the two-dimensional Fermi ga | He, Yuan-Yao; Shi, Hao; Zhang, Shiwei | To reliably reach the continuum limit, we adopt a new finite-temperature algorithm [1], which has computational scaling as linear in lattice size instead of cubic as in the standard algorithm. | Session 33: Strongly Interacting Bose and Fermi Gases |

409 | Universal intrinsic high-rank spin Hall effects | Hou, Junpeng; Zhang, Chuanwei | In this work, we introduce the concept dubbed high-rank spin Hall effect, in which the usual (charge) Hall effects and SHEs are incorporated as rank-0 and rank-1 SHEs. | Session 33: Strongly Interacting Bose and Fermi Gases |

410 | Beyond mean-field corrections to the quasiparticle spectrum of superfluid Fermi gases | Van Loon, Senne; Tempere, Jacques; Kurkjian, Hadrien | Here, we investigate this quasiparticle branch in the BCS-BEC crossover and calculate the quasiparticle lifetime and energy shift due to its coupling with the collective mode. | Session 33: Strongly Interacting Bose and Fermi Gases |

411 | Prediction of Exotic Electron Transport Properties using the Shape Effect of the Fermi Surface | Derunova, Elena; Sun, Yan; Ali, Mazhar | We show that consideration of the geodesic flow on the FS gives rise to FS based equations in a semiclassical style, which contain information about the electron transport properties aside from longitudinal conduction. | Session 33: Strongly Interacting Bose and Fermi Gases |

412 | Superfluidity of interacting fermions in optical lattices: Interplay of population imbalance, dimensionality, and lattice-continuum mixing | Chen, Qijin; Wang, Jibiao; Sun, Lin | In this talk, I will discuss the superfluid behavior of ultracold atomic Fermi gases in 1D and 2D optical lattices (OL), subject to a short range pairing interaction, and show the highly unusual behavior as a consequence of the interplay between population imbalance, dimensionality and more importantly lattice-continuum mixing. | Session 33: Strongly Interacting Bose and Fermi Gases |

413 | Observation of the Topological Anderson Insulator in Disordered Atomic Wires | Gadway, Bryce | Here we describe how a type of synthetic lattice can be engineered for dilute atomic gases at ultracold temperatures, allowing us to mimic the physics of disordered topological materials. | Session 34: Topological States in AMO Systems |

414 | Topological Phases of Interacting Fermions in Optical Lattices | Scarola, Vito; Zeng, Chuanchang; Stanescu, Tudor; Zhang, Chuanwei; Tewari, Sumanta | This talk will review studies of Hubbard-Hofstadter models in regimes revealing topological phases of ultracold fermions arising from the interplay of inter-particle interactions and synthetic fields in kagome and square optical lattices. | Session 34: Topological States in AMO Systems |

415 | Topological Phase Transitions in Finite-size Systems Across Boundary Conditions | Ge, Yang; Rigol, Marcos | Topological Phase Transitions in Finite-size Systems Across Boundary Conditions | Session 34: Topological States in AMO Systems |

416 | Tenfold way for quadratic Lindbladians | Lieu, Simon; McGinley, Max; Cooper, Nigel | We show that this matrix must belong to one of ten non-Hermitian Bernard-LeClair symmetry classes which reduce to the Altland-Zirnbauer classes in the closed limit. | Session 34: Topological States in AMO Systems |

417 | Lattice gauge theories and string dynamics in Rydberg atom quantum simulators | Surace, Federica Maria; Mazza, Paolo Pietro; Giudici, Giuliano; Lerose, Alessio; Gambassi, Andrea; Dalmonte, Marcello | We show that Rydberg atom setups represent an ideal platform for the investigation of equilibrium and non-equilibrium properties of lattice gauge theories, by proving their equivalence to abelian (and possibly non abelian) gauge theories on the lattice. | Session 34: Topological States in AMO Systems |

418 | Exact quantum many-body scar states intrinsic to periodically driven system in the Rydberg-blockaded atom chain | Sugiura, Sho; Kuwahara, Tomotaka; Saito, Keiji | Here we discuss the violation of the Floquet ETH with realistic Hamiltonians. | Session 34: Topological States in AMO Systems |

419 | Exact quantum many-body scar states in the two-dimensional PXP model and their dynamical signatures | Lin, Cheng-Ju; Calvera, Vladimir; Hsieh, Timothy | As a manifestation of these scar states, we propose a quench experiment starting from a charge-density-wave initial state, resulting in strong oscillations in the total Rydberg-excitation number. | Session 34: Topological States in AMO Systems |

420 | Fragmented Hilbert Spaces and Slow Dynamics in Quantum Dimer Models | Feldmeier, Johannes; Pollmann, Frank; Knap, Michael | Within this context, we investigate the connectivity of configuration spaces resulting from the hard core constraint in close-packed dimer models. | Session 34: Topological States in AMO Systems |

421 | Thermalization and its Breakdown for a Large Nonlinear Spin | Kelly, Shane; Tsai, Shan-Wen; Timmermans, Eddy | By developing a semi-classical analysis based on the Eigenstate Thermalization Hypothesis, we determine the long time behavior of a large spin evolving with a nonlinear Hamiltonian. | Session 34: Topological States in AMO Systems |

422 | CPT invariant topological phase in non-Hermitian spin-1/2 quantum systems | Das, Tanmoy; Ghatak, Ananya | Over the last two to three years, we have made several contributions to time-dependent theory for parity (P), time-reversal (T) invariant non-Hermitian Hamiltonians; delineating its conservation laws, CPT gauge invariance, and new term in the Berry phase. | Session 34: Topological States in AMO Systems |

423 | Topological insulator-superconductor phase transition in a non-Hermitian spin chain | Li, Yunmei; Luo, Xiwang; Hou, Junpeng; Zhang, Chuanwei | Here we consider a 1D XY spin model with non-Hermitian out-of-plane magnetic field, which is periodically modulated. | Session 34: Topological States in AMO Systems |

424 | Non-adiabatic topological energy pumps with three incommensurate frequencies | Ge, Rongchun; Nathan, Frederik; Morimoto, Takahiro; Gazit, Snir; Rudner, Mark; Kolodrubetz, Michael | In this talk, we generalize such multichromatic Floquet techniques to study the topological properties of one-dimensional systems driven by two non-adiabatic drives and two-level systems driven by three incommensurate drives. | Session 34: Topological States in AMO Systems |

425 | Quadrupole Topological Photonic Crystals | He, Li; Addison, Zachariah; Mele, Eugene; Zhen, Bo | Extensions of these ideas from current tight binding models to continuum theories for realistic materials require the identification of quantized invariants describing the bulk quadrupole order. | Session 34: Topological States in AMO Systems |

426 | Non-Hermitian topological photonics and light steering | Feng, Liang; Zhao, Han; Qiao, Xingdu; Wu, Tianwei; Midya, Bikashkali; Longhi, Stefano | By strategically interfacing non-Hermitian and topological physics, we demonstrate arbitrary, robust light steering in reconfigurable non-Hermitian junctions, in which chiral topological states can propagate at an interface of the gain and loss domains. | Session 34: Topological States in AMO Systems |

427 | Floquet engineering with resonant drive and Application to symmetry-protected topological phases | Mizuta, Kaoru; Takasan, Kazuaki; Kawakami, Norio | Therefore, we extend the conventional high-frequency expansion theory to the cases in the presence of resonant drives (= drives whose local energy scale is comparable to the frequency) and propose a new scheme of Floquet engineering done by high-frequency and resonant drives [1]. | Session 34: Topological States in AMO Systems |

428 | Topological amplification in photonic lattices and the classification of topological non-Hermitian phases | Porras, Diego; Fernández-Lorenzo, Samuel | In my talk I will present a definition of topological invariants for driven dissipative lattices that relies on the singular value decomposition of non-Hermitian coupling matrices, H, or, equivalently, on the eigenstates of an effective Hamiltonian, H eff = σ + H + H † σ -. | Session 34: Topological States in AMO Systems |

429 | Topological Invariants for Quantum Quench Dynamics | Hu, Haiping; Zhao, Erhai | We introduce the concept of loop unitary $$U_l$$ and its homotopy invariant $$W_3$$ to fully characterize the quench dynamics of arbitrary two-band insulators in two dimensions, going beyond existing scheme based on Hopf invariant which is only valid for trivial initial states. | Session 34: Topological States in AMO Systems |

430 | Quantum many-body scars from virtual entangled pairs | Chattopadhyay, Sambuddha; Pichler, Hannes; Lukin, Mikhail; Ho, Wen Wei | We study weak ergodicity breaking in a one-dimensional, non-integrable spin-1 XY model. | Session 34: Topological States in AMO Systems |

431 | Haldane Phase in Spin-1 Bose-Hubbard Model with Flat Band | Yang, Hong; Nakano, Hayate; Katsura, Hosho | Here we study the spin-1 Bose-Hubbard model on a sawtooth lattice with flat band. | Session 34: Topological States in AMO Systems |

432 | Detecting fractional Chern insulators in optical lattices through quantized displacement | Na, Ilyoun; Motruk, Johannes | We consider a ν = 1/2 FCI state realized in the lowest band of a Harper-Hofstadter model of hardcore bosons in a harmonic trapping potential. | Session 34: Topological States in AMO Systems |

433 | Robustness of quantum scarred states to the presence of disorder and external drives | Mondragon-Shem, Ian; Vavilov, Maxim; Martin, Ivar | We focus on models that exhibit approximate SU(2) symmetries, such as the PXP model, and explore conditions under which the dynamics of the system remains non-ergodic. | Session 34: Topological States in AMO Systems |

434 | Topological effects in interacting Su-Schrieffer-Heeger chains | Drueeke, Helena; Bauer, Dieter | The Su-Schrieffer-Heeger (SSH) model [1] describes a linear chain with two distinct topological phases. | Session 34: Topological States in AMO Systems |

435 | Topological photonic resonator for chiral quantum optics | Barik, Sabyasachi; Karasahin, Aziz; Mittal, Sunil; Waks, Edo; Hafezi, Mohammad | Here we demonstrate chiral light-matter interactions in a topological resonator. | Session 34: Topological States in AMO Systems |

436 | Effective field theories at the edges of topological insulators | Valiente, Manuel; Chen, Xin | We build two different effective field theories for the interacting edge modes in the system near the Fermi energy that eliminate the bulk in two different ways: 1) by keeping the inhomogeneity explicitly and 2) by accounting for the width of the resonance in the dispersion relations. | Session 34: Topological States in AMO Systems |

437 | Dynamical Quantum Phase Transitions in U(1) Quantum Link Models in (1+1)d and (2+1)d | Huang, Yi-Ping; Banerjee, Debasish; Heyl, Markus | We aim to characterize the nonequilibrium evolution in lattice gauge theories through the lens of dynamical quantum phase transitions, which provide general principles for real-time dynamics in quantum many-body systems. | Session 34: Topological States in AMO Systems |

438 | Ultrafast X-ray Molecular Dynamics | Leone, Stephen | The method is used to investigate dissociating molecules, ring opening, passage through curve crossings and conical intersections, singlet-to-triplet transitions, and electronic and vibrational coherences. | Session 35: Ultrafast Spectroscopies and Coherent Phenomena in the X-ray Domain |

439 | Probing the ultrafast intermediate states of a divalent cobalt-manganese complex with femtosecond M-edge XANES | Ryland, Elizabeth; Zhang, Kaili; Vura-Weis, Josh | In this work we perform ultrafast transient M-edge XANES on divalent Cobalt-Manganese(N,N,N-tri(2-(2-pyridylamino)ethyl)amine)Cl, a heterobimetallic system with directly-interacting dual metal centers held within a non-innocent ligand scaffold. | Session 35: Ultrafast Spectroscopies and Coherent Phenomena in the X-ray Domain |

440 | Ultrafast spin cross-over dynamics in heme proteins | Chergui, Majed | Here too we establish the photocycle as a SCO event, and propose that doming is crucial for the electron transfer properties of the protein, rather than heme ruffling as previously proposed. | Session 35: Ultrafast Spectroscopies and Coherent Phenomena in the X-ray Domain |

441 | Ultrafast X-Ray Absorption Spectroscopy as a Probe of Conical Intersection-Mediated Dynamics: Theoretical Tools and Studies | Neville, Simon | In this talk, I will present recent studies using CVS-DFT/MRCI for the exploration of the sensitivity of TRXAS to conical-intersection-mediated dynamics in a range of molecules, ranging from the disentangling of competing relaxation pathways in allene to the Jahn-Teller effect-mediated dynamics in the graphene nanoflake coronene. | Session 35: Ultrafast Spectroscopies and Coherent Phenomena in the X-ray Domain |

442 | RIXS within the coupled-cluster framework reveals the hidden transitions of transient species in ionized liquid water | Nanda, Kaushik; Kjellsson, Ludvig; Rubensson, Jan-Erik; Doumy, Gilles; Southworth, Stephen; Ho, Phay; March, Anne; Al Haddad, Andre; Kumagai, Yoshiaki; Tu, Ming-Feng; Mohd Yusof, Muhammad Shafiq; Debnath, Tushar; Arnold, Caroline; Welsch, Ralph; Inhester, Ludger; Santra, Robin; Simon, Marc; Schlotter, William; Moeller, Stefan; Coslovich, Giacomo; Korelek, Jake; DePonte, Daniel; Loh, Zhi-Heng; Krylov, Anna; Young, Linda | We will present a novel electronic structure method within the equation-of-motion coupled cluster framework that facilitates converged calculations of the RIXS spectra for both closed- and open-shell species. | Session 35: Ultrafast Spectroscopies and Coherent Phenomena in the X-ray Domain |

443 | Simulating Time-resolved X-ray Spectroscopy: Progress and Challenges | Penfold, Tom | Herein I will present some recent work on intersystem crossing dynamics in transition metal complexes and discuss the potential insight that could be obtained from femtosecond X-ray studies. | Session 35: Ultrafast Spectroscopies and Coherent Phenomena in the X-ray Domain |

444 | Theory and implementation of nonlinear X-ray spectroscopies: application to time-resolved diffraction, X-ray chirality and transient grating experiments | Rouxel, Jeremy; Mukamel, Shaul | We present how X-ray experiments can make use of their element selectivity to probe matter chirality with additional structural information. | Session 36: Ultrafast Spectroscopies and Coherent Phenomena in the X-ray Domain I. |

445 | Quantum control of high-energy harmonic generation by pulse shaping | Gui, Guan; Karl, Robert; Thurston, Jeremy; Johnsen, Peter; Bevis, Charles; Binnie, Iona; Kapteyn, Henry; Murnane, Margaret; Liao, Chen-Ting | Here we demonstrate the ability for enhancing the HHG flux and spectrum at higher photon energies around ~100eV, relevant for imaging and magnetic spectroscopies. | Session 36: Ultrafast Spectroscopies and Coherent Phenomena in the X-ray Domain I. |

446 | Attosecond soft-X-ray spectroscopy in the gas and liquid phases | Woerner, Hans Jakob | A promising approach is offered by the element- and site-sensitivity of X-ray spectroscopy. | Session 36: Ultrafast Spectroscopies and Coherent Phenomena in the X-ray Domain I. |

447 | Probing Photo-Physical Processes in Solid-state Organic Semiconductors Using Optical Pump – X-ray Probe Spectroscopy | Toney, Michael; Abeldsamie, Maged; Vigil, Julian; Cordones-Hahn, Amy; schneider, sebastian; Reid, Obadiah; Allen, Taylor; Rumbles, Garry; Zhang, Xiaoyi | Here, using Tr-XAS combined with transient absorption spectroscopy and transient microwave conductivity, we investigate the local structure and time evolution of photoinduced charge-separated species in thin films of molecularly dispersed octabutoxy-Zinc(II) phthalocyanine (OButx-ZnPc) in a matrix of the well-known conjugated polymer poly(3-hexylthiophene) (P3HT). | Session 36: Ultrafast Spectroscopies and Coherent Phenomena in the X-ray Domain I. |

448 | Enhancement of X-ray image brightness through transient ionic resonances | Gorkhover, Tais | Our recent study at LCLS suggests that transient ionic resonances (TIR) above an absorption edge can enhance diffraction efficiency before significant structural damage can occur. | Session 36: Ultrafast Spectroscopies and Coherent Phenomena in the X-ray Domain I. |

449 | Ultrafast X-ray Absorption and Time-Resolved Resonant X-ray Scattering in a Mott Insulator | Moritz, Brian; Wang, Yao; Chen, Yuan; Jia, Chunjing; Devereaux, Thomas | This work provides a theoretical foundation for existing and future tr-RIXS experiments. | Session 36: Ultrafast Spectroscopies and Coherent Phenomena in the X-ray Domain I. |

450 | Ultrafast Dynamics and Imaging at the Nanoscale using Tabletop Coherent X-ray Sources | Kapteyn, Henry; Murnane, Margaret | Highlights include the discovery of a new regime of collective nanoscale heat transport,[5] and work highlighting our current incomplete understanding of dynamic mechanisms in magnetic materials. | Session 36: Ultrafast Spectroscopies and Coherent Phenomena in the X-ray Domain I. |