654 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 a platform for realizing superradiant charge density waves in doped, driven transition-metal dichalcogenides coupled to an optical cavity, where a nanoscale grating bridges the momentum mismatch to enable efficient light-matter coupling and significantly lowers the pump intensity threshold for ordering by tuning to enhanced electronic fluctuations.
Using density-matrix renormalization group studies and effective low-energy Hamiltonians, this paper reveals that one-dimensional hard-core bosons with subgroup-specific attractive interactions form a molecular quantum liquid that exhibits emergent attractive interactions between dimers, leading to phase-separated absorbing states and extreme sensitivity to unpaired atoms.
This paper uncovers the microscopic mechanism of slow dynamics in one-dimensional quasiperiodic many-body localized systems, identifying quantum amplitude modulation of single-particle hoppings as the cause of structured growth in number entropy and quasiparticle width, thereby supporting the thermodynamic stability of the MBL phase.
This paper investigates a bosonic avalanche laser driven by a dissipative three-mode mixing process, demonstrating through both semi-classical analysis and exact Monte-Carlo simulations that the system functions as an excitable quantum many-body model capable of converting random inputs into quasi-periodic pulses even at low photon numbers, with potential applications in superconducting quantum circuits as number-resolved microwave photon detectors.
This paper develops a self-consistent Hartree-Fock quantum kinetic theory for two-dimensional electron gases that reveals how the exchange-Coulomb potential renormalizes Fermi velocity, drives long-wavelength instabilities and charge-imbalance patterns in coupled layers, and substantially enhances Coulomb drag resistivity in dilute GaAs double wells, thereby resolving discrepancies with classical models and matching experimental observations.
This paper presents a Transformer-based machine learning framework that autonomously identifies topological invariants and geometric features of complex-energy braids, successfully demonstrating the detection of these non-Hermitian topological phases in a dissipative cold-atom simulator.
This paper proposes and theoretically validates a route to stabilize a chiral spin liquid on a breathed Kagome lattice with long-range dipolar interactions, supported by large-scale numerical simulations and outlining experimentally viable signatures in Rydberg atom and polar molecule arrays.
This study demonstrates that in a three-species Bose-Josephson Junction, quantum thermalization can occur in both chaotic and integrable regimes without requiring non-integrability, while athermal quantum scars persist in the chaotic limit, thereby challenging the necessity of non-integrability for thermalization and highlighting the role of weak ETH violations.
This chapter reviews theoretical and experimental advances in generating and observing extreme nonlinear wave events, known as rogue waves, within ultracold quantum gases by connecting exact integrable solutions to controllable dynamics in non-integrable many-body systems and highlighting their broader relevance across diverse physical settings.
This combined experimental and theoretical study of ultracold Bose gases in one-dimensional optical lattices reveals that while phase coherence in deep lattices aligns with zero-temperature predictions, the observed reduction in effective temperature at higher lattice depths is not due to cooling but rather results from the inhibition of thermalization caused by Mott domain formation, which paradoxically facilitates the preparation of low-entropy quantum gases in the trap center.