649 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 demonstrates high-fidelity (>99.9%) and nondestructive imaging of single Yb atoms in shallow clock-magic tweezers using alternating dual-tone narrowline cooling, a technique that enables scalable quantum systems and highly repeatable tweezer clocks.
This paper numerically investigates how periodic optical lattices of varying geometries (triangular, honeycomb, and square) interact with the intrinsic triangular order of a two-dimensional dipolar supersolid, revealing that the competition between the self-organized soft lattice and the rigid external potential generates unique moiré superstructures and frustration-induced anisotropic states.
This paper investigates two-cluster scattering in a quasi-one-dimensional Bose gas, utilizing the Lüscher formula and Lieb-Liniger integrability to demonstrate that transverse confinement induces a finite, positive effective three-body interaction leading to the emergence of a resonance.
This paper proposes utilizing trap-induced resonances in arrays of ultracold polar molecules within optical tweezers to transform motional dephasing from an obstacle into a resource for implementing efficient state-dependent quantum gates and sensing.
This paper critically evaluates spin-orbit coupled Bose-Einstein condensates as analogues for cavity quantum electrodynamics, demonstrating that while they can faithfully simulate single-atom light-matter interactions like the quantum Rabi model, they fundamentally fail to reproduce the collective many-body entanglement effects characteristic of the Dicke model.
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.