642 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 proposes an experimental scheme using cavity-enhanced photoassociation to realize long-range three-body interactions, leading to a hybrid atom-molecule superradiant phase transition characterized by cubic photon-number scaling and strong photon-matter entanglement.
This paper resolves the paradox of superballistic conduction occurring at near-zero temperatures in electron fluids by demonstrating that treating electrons as fermions with tomographic dynamics—allowing only head-on collisions—rather than as classical particles, explains the phenomenon and its distinction from conventional fluid behavior.
Using atom-resolved quantum gas microscopy, this study provides a microscopic view of two-dimensional attractive Fermi gases by directly observing fermion pairing and spatial correlations, revealing significant deviations from BCS theory and establishing the dominant role of pair-correlations through precise measurements of Tan's Contact and correlation functions.
This paper reports the experimental measurement of a novel "turquoise" magic wavelength at 497.4363(3) nm for the Sr clock transition, which enables deeper optical traps with less power and offers enhanced sensitivity compared to the conventional 813 nm wavelength.
This paper demonstrates that roton-mediated long-range interactions in binary dipolar Bose-Einstein condensates enable the formation of multiple dark-antidark soliton bound states with distinct separations and universal low-velocity bouncing collisions, offering a realistic experimental pathway to confirm the existence of spin rotons.
This study reveals that quasiperiodic many-body localized systems harbor a broad unconventional regime at strong potentials, characterized by atypical eigenstates with long-range correlations and fat-tailed distributions that challenge the expectation of a sharp ergodic-MBL transition.
This paper demonstrates that neural-network quantum states can successfully identify stable bright, double bright, and dark solitonic solutions in a repulsively interacting, harmonically trapped one-dimensional Bose-Einstein condensate by optimizing wavefunctions to balance repulsion with trap-induced attraction.
This paper investigates the interacting, spinful two-chain Hatano-Nelson model to map out the conditions for a purely real spectrum, analyze the relationship between periodic and open boundary condition modes via winding numbers, and validate the non-Hermitian description's ability to qualitatively capture the low-filling dynamics of such non-equilibrium systems.
This paper presents the first direct spectroscopic measurement of the Casimir-Polder force in the intermediate regime by observing kHz-frequency energy level shifts in ultracold strontium atoms positioned 189 nm from a dielectric surface, confirming quantum electrodynamics predictions and bridging the gap between short-range and long-distance theoretical approximations.
This paper employs a grand-canonical mean-field approach to map out the ground-state phase diagrams of spinor bosons in an optical cavity, revealing the emergence of novel magnetic phases—including antiferromagnetic Mott insulators, ferromagnetic density waves, and distinct supersolid regimes—under both homogeneous and harmonically trapped conditions.