658 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 probability-phase mutual information, , as a novel metric that characterizes quantum coherence at the ensemble level by quantifying the structural information lost during averaging, thereby revealing temperature-dependent correlations, conversion bounds, and deep thermalization breakdowns that standard density-matrix measures cannot detect.
This paper numerically demonstrates that experimentally feasible two-body Ising interactions in D Rydberg atom arrays can stabilize a prethermal lattice gauge structure, which eventually breaks down via defect proliferation to reveal thermalization dynamics governed by the Kardar-Parisi-Zhang universality class.
This paper extends Equilibrium Propagation to discrete and continuous complex-valued wave systems, demonstrating a robust method for in-situ training of physical neural networks in weakly dissipative regimes through local potential control, as validated by numerical simulations on driven-dissipative exciton-polariton condensates.
Using real-space dynamical mean-field theory, this study numerically investigates the paramagnetic phases of ultracold fermions in a cavity-coupled optical lattice, revealing a reentrant density-wave transition at quarter filling and a cavity-mediated destabilization of the half-filled system into a density-wave phase that coexists with Fermi liquid and Mott insulating states.
This paper introduces a minimal-control protocol that generates unitary -designs by evolving a system under a random Hamiltonian and performing a single quench to an independent Hamiltonian after the Thouless time, thereby breaking residual spectral correlations to achieve Haar-like randomness with significantly fewer operations than existing methods.
This paper demonstrates that strong Rabi coupling in coherently-coupled bosonic mixtures under external confinement can shift confinement-induced resonances to scattering lengths much smaller than the oscillator length, thereby providing a new and more tunable mechanism for controlling strong interactions in ultracold quantum gases.
This paper introduces an unsupervised "distance learning" framework that uses a neural discriminator to estimate statistical distances between quantum state snapshots, enabling the identification of correlation regimes, reconstruction of phase diagrams, and extraction of critical exponents across diverse many-body systems without relying on traditional representation learning.
This paper utilizes a newly developed Light-Matter DMRG algorithm to investigate a generalized Dicke-Ising model in high-Q cavities, revealing how cavity-induced multimode structures can optimize spin entanglement, drive transitions to superradiant phases, and stabilize quantum spin nematic states for potential quantum state engineering.
This paper develops a universal Tomonaga-Luttinger liquid theory for one-dimensional attractive Fermi gases that rigorously derives a two-component effective Hamiltonian to describe FFLO-like pairing states across weak and strong coupling regimes, revealing distinct spin-charge coupling and charge-charge separation behaviors while proposing experimental verification via ultracold atoms.
This paper proposes a quantum simulation scheme using microwave-driven open-shell molecules in optical traps to realize a spin-1 Hamiltonian that hosts the Haldane phase in one dimension, demonstrating its robustness against SU(3) symmetry-breaking terms and feasibility with molecules like MgF.