641 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 paper introduces a configuration-space framework that overcomes the limitations of finite-size numerics to predict and explain the hierarchical energy gaps in quasicrystalline potentials as arising from resonant hybridization between distant sites, a theory validated by large-scale tight-binding simulations.
This paper theoretically demonstrates that an annular Bose-Einstein condensate coupled to a ring cavity can realize chiral supersolid phases with persistent circulation and tunable rotational dynamics through interference-driven mechanisms, offering a versatile platform for generating chiral quantum matter and atomtronic circuits.
This paper develops a numerically efficient coupled-channel framework using Bogoliubov modes to accurately describe the long-time dynamics of spinor Bose-Einstein condensates near spin-spatial resonances, where standard single-mode and mean-field approximations fail due to the emergence of significant beyond-quadratic-order effects.
This paper investigates holographic first-order superfluid phase transitions, revealing that near the nucleation threshold, bubble dynamics exhibit universal logarithmic scaling and that multi-bubble collisions can generate transient vortex-antivortex pairs that deviate from the geodesic rule due to non-equilibrium effects.
This paper introduces a minimally invasive protocol using repeated weak measurements to directly observe the time evolution of many-body quantum correlations without external perturbation, successfully demonstrating the technique by measuring the Van Hove function and dynamical structure factor in an atomic Bose-Einstein condensate.
This paper demonstrates through ground-state quantum Monte Carlo calculations that the energy of a mobile impurity in a lattice Bose gas exhibits scale invariance at the Mott-superfluid critical point, establishing impurity spectroscopy as a viable method for probing the critical properties of quantum phase transitions.
This paper demonstrates through numerical simulations that a sudden topological quench, which abruptly cancels the winding of a giant vortex in a repulsive Bose-Einstein condensate, triggers implosive dynamics characterized by a central density buildup and a subsequent symmetry-breaking transition from circular to polygonal wave fronts.
Using pump-probe ejection spectroscopy on 39K Bose-Einstein condensates, researchers observed significant low-energy spectral weight below the standard Bose polaron peak that, while consistent with both dressed impurity and bipolaron theoretical models, is best explained by the formation of bipolaron states due to attractive interactions mediated by the condensate.
This paper reports the successful preparation of a quasi-two-dimensional heteronuclear quantum degenerate mixture of ultracold Na and Rb atoms using a versatile experimental apparatus, demonstrating quantum immiscibility that aligns with mean-field theories and establishing a platform for future low-dimensional quantum studies.
Using the multiconfigurational time-dependent Hartree method for bosons, this study reveals how a one-dimensional Bose-Josephson junction in a box trap transitions from coherent oscillations to many-body dephasing and dynamical freezing as interaction strength and initial population imbalance vary, establishing a unified framework for understanding the interplay between coherence and correlation-induced fragmentation.