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 demonstrates that stochastic noise can constructively enhance self-healing dynamics in non-Hermitian systems, where weak noise prolongs the recovery window via Lyapunov exponent alignment and strong noise universally stabilizes asymptotic profile recovery through effective drift-diffusion dynamics.
This paper reports the first experimental determination of the D1 magic wavelength for fermionic K at 1227.54(3) nm, a critical advancement that eliminates state-dependent light shifts to enable high-fidelity cooling, imaging, and loading for scalable neutral-atom quantum arrays.
This paper provides an introductory review of many-body localization (MBL) as a nonergodic phenomenon in interacting quantum systems, detailing evidence for the ergodic-to-MBL crossover using the XXZ model, discussing its generality across other models, and briefly exploring its potential connection to quantum computing.
This paper provides a fully analytical proof of Anderson's orthogonality catastrophe for the one-dimensional Fermi polaron with attractive interactions by combining Bethe ansatz determinant representations and Cauchy matrix properties to demonstrate that the quasi-particle residue decays algebraically with an exponent determined by the Fermi-edge phase shift.
This paper demonstrates that in non-Hermitian impurity scattering, late-time dynamics are governed by "dynamical poles" derived from the analytic continuation of the Green's function rather than static bound states, revealing a fundamental breakdown of the Hermitian correspondence where isolated exponential signals uniquely identify bound states.
This paper proposes a general strategy for engineering new types of Floquet many-body cages in driven quantum circuits, demonstrating their realization in constrained models like the quantum hard disk system to create novel nonequilibrium states featuring topological properties and time-crystalline order.
This paper presents a compact, dual-solenoid magnetic coil and control circuit capable of rapidly changing the magnetic field by up to 36 Gauss in 3 microseconds, enabling the study of non-equilibrium quantum dynamics in cold atom experiments via Feshbach resonances.
This paper theoretically proposes and numerically demonstrates that three interacting particles in a circular trap exhibit quantum scars—specifically towers of eigenstates stabilized by quantum mechanics around a classically unstable periodic trajectory—making the phenomenon experimentally accessible via recent advances in Rydberg atom trapping.
Using a quantum gas microscope to manipulate ultracold atoms in driven Bose-Hubbard chains and ladders, the authors demonstrate a practical quantum computational advantage by sampling thermalized many-body states with a Hilbert space dimension of at a rate three orders of magnitude faster than classical supercomputers, while validating the system's chaotic nature through volume-law entanglement and high-order correlation measurements.
This paper investigates the single-particle momentum distribution of mass-imbalanced Efimov states in noninteger dimensions, revealing that contact parameters grow significantly as the dimension decreases from three toward a critical value where continuum scale symmetry emerges, thereby influencing observables in resonantly interacting trapped Bose gases.