664 papers
This category explores the fascinating world of quantum gases, where scientists cool atoms to temperatures near absolute zero to create exotic states of matter. In these extreme conditions, individual atoms begin to behave like a single giant wave, revealing strange quantum effects that are usually hidden in our everyday warm world. These experiments help researchers understand the fundamental rules governing matter and could one day lead to revolutionary new technologies like ultra-precise sensors or quantum computers.
On Gist.Science, we process every new preprint in this field directly from arXiv to make these complex discoveries accessible to everyone. Our team provides both plain-language overviews for the curious mind and detailed technical summaries for experts, ensuring you get the full picture without getting lost in the jargon. Below are the latest papers from arXiv in Cond-Mat — Quant-Gas, freshly summarized and ready for you to explore.
This study demonstrates that increasing one-dimensional lattice confinement in an ultracold Li Fermi gas induces an orbital-dependent dimensional crossover of a -wave Feshbach resonance, where the relative contributions of different orbital channels evolve due to reduced dimensionality, establishing confinement as a powerful tool for controlling anisotropic interactions in quantum matter.
This paper presents a classical field simulation study using the stochastic projected Gross-Pitaevskii equation to investigate the thermal melting of a two-dimensional vortex lattice in a fast-rotating Bose gas, revealing clear signatures of the Kosterlitz-Thouless-Halperin-Nelson-Young melting scenario and demonstrating the crucial role of finite-size effects on defect proliferation and melting temperatures.
This study demonstrates that turbulent Bose-Einstein condensates driven by both subcritical and supercritical energy injections follow a universal relaxation pathway characterized by identical scaling exponents and dynamical stages, ultimately proving that the evolution of quantum turbulence is independent of both initial conditions and final thermal states.
This paper demonstrates that by renormalizing the Dirac field in curved spacetime, the metric's temporal and spatial gradients naturally induce non-Hermitian phenomena—specifically nonunitary gain/loss and the non-Hermitian skin effect—thereby establishing a unified geometric framework that links spacetime deformations to non-Hermitian phases of matter.
This paper demonstrates that the slow decay of odd harmonics in the electron distribution function of 2D electron gases leads to an "anomalous Knudsen effect"—a conductance peak at low temperatures that precedes the Gurzhi dip—serving as a distinct signature of long-lived modes in hydrodynamic transport.
This paper demonstrates that applying a carefully tuned magnetic field can suppress depolarization collisions in ultracold thulium atoms by a factor of 1000, thereby enabling the efficient utilization of their Zeeman manifold for quantum simulations.
This paper proposes a general state preparation method that utilizes specific unitary operations to cancel desired relaxation modes, thereby enabling open quantum systems to reach steady-state convergence within experimental timeframes, as demonstrated in a long-range qubit chain.
This paper presents a numerical study demonstrating that controlled non-adiabatic dynamics, specifically synchronized with intra-site breathing oscillations, enable fast momentum-selective transport of Bose-Einstein condensates in optical lattices with high fidelity and narrow momentum distributions, offering a significant speedup over traditional adiabatic protocols for quantum sensing applications.
This study investigates the nonequilibrium dynamics of interacting bosons in a two-leg ring ladder with artificial magnetic flux and ac-driven modulations, demonstrating how tuning drive frequency and magnetic flux enables precise control over particle currents, self-trapping phenomena, and transitions between chiral and antichiral dynamics.
This paper demonstrates that while Berry curvature does not affect quantized nonlinear transport in translationally invariant two-dimensional Fermi gases, the introduction of spatial inhomogeneity causes this quantization to break down due to the interplay between Berry curvature and potential gradients, a phenomenon observable in trapped ultracold atoms.