Quantum Gases Papers of the Week

We propose a scheme to realize Weyl superfluidity from topologically trivial bands in the strongly correlated regime of a three-dimensional optical Raman lattice.

We theoretically describe and experimentally observe the reversibility of a nonequilibrium state in a unitary Fermi gas confined in a time-dependent trap.

We show that the boundary fractionalization familiar from gapped topological insulators can enforce bulk gaplessness in a dipole-conserving system.

A natural question then arises: can the complete target phase boundary be predicted with fewer high-cost critical points of the target cluster? To address this question, we propose single-anchor Delta-learning (SA-Delta), which requires only a single high-cost critical point of the target cluster to reconstruct the complete target phase boundary, thereby greatly reducing the computational cost.

Here we reveal the characteristic cooperative radiation from condensates of hybrid moiré excitons in twisted MoTe$_2$ bilayers.

Building on these results, here we propose a scheme for magnetic-field-gradient detection by establishing a quantitative relationship between the condensate's rotational deflection angle and the magnetic-field gradient. In this work, we present the parameter dependence of this scheme and perform a systematic optimization.

We show that microwave shielding, which enables collisionally stable ultracold polar molecules, also leads to genuine nonadditive three-body interactions comparable to the shielding interaction itself.

Here we report an ODT-based Bose-Einstein condensate created aboard the China Space Station, containing 2.0 × 10 4 atoms, reaching an equivalent temperature of 9.7 − 2.7 + 3.2 pK with a free expansion time of 7.0 s.

In this work, we examine the stability of energy gap of macroscopic quantum matter that is only subject to two physically natural conditions, locality and translation invariance.

We study the superfluid phases of a two-dimensional degenerate Fermi gas in an optical lattice subject to a $d_{xy}$-wave altermagnetic term that couples to the in-plane spin component.

We investigate nonequilibrium coherence spreading in quenched homogeneous bosonic gases both analytically and numerically.

We investigate the bound state and effective potential of microwave-shielded ultracold molecules under longitudinal confinement, which effectively creates a quasi-two-dimensional (q2D) geometry.

We target a Laughlin-like state that is an exact zero-energy ground state of a long-range parent Hamiltonian on a torus, eliminating physical edges and providing a favorable geometry for accessing fractional quantum Hall physics in a small system.

Here we propose a quench protocol for non-Abelian topological insulators, so that the underlying topology can be systematically probed using dynamic signatures.

We demonstrate spontaneous chiral dipole order and an isolated collective Chern band in a time-reversal-symmetric microscopic bosonic lattice model with exact dipole-moment conservation.

The two-body density matrix (TBDM) of a quantum many-body system provides information about particle correlations, e.g., pairing. In this work, we derive the complete spectrum of the TBDM of the fermionic Tonks-Girardeau gas using its exact ground-state wavefunction in second quantization.

Here, we demonstrate Shapiro spikes in a neutral quantum fluid using simulations of a potential-biased atomic Josephson junction.

By suddenly releasing the confinement, we resolve anisotropic flow harmonics up to the seventh order.

In bulk-edge correspondence, this challenge arises when the global band gap closes and localized boundary modes disappear, even though the bulk topology remains intact. Here we show that interactions unlock a novel emergent boundary response from this spectrally hidden topology without reopening the global band gap.