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 presents a sign-problem-free model and unbiased quantum Monte Carlo simulations demonstrating the emergence of a robust, high-temperature charge-4e superconducting phase in two-dimensional SU(4) interacting fermions, characterized by a Berezinskii-Kosterlitz-Thouless transition and a pseudogap regime.
This paper proposes and numerically demonstrates that Kardar-Parisi-Zhang (KPZ) universality, characterized by specific scaling exponents and Tracy-Widom statistics, emerges intrinsically in continuous quasi-one-dimensional polariton condensates stabilized by optical confinement, extending the phenomenon beyond previously observed discrete lattices.
This paper proposes that a single universal, doping-dependent magnetic energy scale () governs both the static and dynamical magnetic correlations of doped Fermi-Hubbard systems, thereby linking magnon-magnon interactions to pseudogap phenomena and the stability of antiferromagnetic order.
This paper investigates how a static impurity affects strongly correlated repulsive SU() fermions in a one-dimensional mesoscopic ring under an artificial gauge field, revealing that the system's behavior is governed by the competition between single-particle processes and the formation of a high-stiffness spin-correlated state driven by flux quantum fractionalization.
This paper demonstrates that the Efimov effect, characterized by an infinite tower of three-body bound states with discrete scale invariance, emerges in long-range quantum spin chains due to modified magnon dispersion, with theoretical predictions on binding energy ratios confirmed by numerical solutions and applicable to experimental trapped-ion systems.
This paper demonstrates that neither non-interacting nor self-interacting charged bosons can undergo Bose-Einstein condensation in a parallel magnetic field and rotation due to the system's quasi-one-dimensional nature, which suppresses the critical temperature and prevents off-diagonal long-range order at any nonzero temperature.
This paper introduces a universal framework for programmable fermionic quantum processors using globally controlled itinerant fermions, such as neutral atoms in optical lattices, by providing constructive protocols to realize arbitrary fermionic processes through time-dependent control of global parameters like tunneling and interactions.
This paper demonstrates that utilizing geometric frustration and magnetic flux to induce flat-band formation and Aharonov-Bohm caging in a bosonic rhombi-chain lattice significantly enhances the work output and efficiency of quantum Otto cycles by suppressing heat release, while offering broader work extraction for Stirling cycles, thereby establishing spectral engineering as a viable strategy for optimizing bosonic quantum thermal machines.
This paper demonstrates that one-dimensional dual-species Rydberg atom chains exhibit long-lived revivals and real-space dynamical fragmentation, where the competition between intra-species repulsion and inter-species attraction creates emergent barriers that isolate and protect coherent dynamics, offering a versatile platform for exploring nonergodic many-body phenomena beyond single-species systems.
This chapter reviews experimental advances in studying attractive Bose-Einstein condensates, highlighting techniques for controlling interactions and observing key phenomena such as wave collapse, bright solitons, vortex solitons, and nonclassical signatures of modulational instability across various dimensions.