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 proposes a minimal model of frustrated hardcore bosons on a -flux ladder that generates exact quantum many-body scars, offering a cross-platform experimental realization in cold atom and Rydberg atom systems to benchmark coherence and explore nonergodic dynamics.
This paper establishes a general framework for the quantum Mpemba effect in closed chaotic many-body systems by demonstrating that relaxation is accelerated when initial states suppress overlap with dominant Ruelle-Pollicott resonant modes, a phenomenon further enhanced by translation-symmetry breaking and validated through the kicked Ising chain with number-theoretic initial states.
This chapter reviews two decades of theoretical and experimental progress in driven Bose-Einstein condensates, tracing the field from the initial prediction of parametric instabilities to the recent observation of stabilized square lattice patterns that exhibit supersolid-like features.
This paper demonstrates that adding a strong periodic modulation to the Aubry-André model can restore and engineer a robust emergent critical phase characterized by multifractal eigenstates and singular continuous spectra, while simultaneously folding the spectrum into multiple bands that replicate Hofstadter butterfly structures.
This paper uses infinite matrix product state techniques to demonstrate that coupling a quantized axion field to the massive Schwinger model in a Hamiltonian lattice gauge theory dynamically relaxes the effective -angle to a CP-conserving minimum, thereby providing a nonperturbative, quantum-hardware-ready solution to the strong CP problem.
Using large-scale quantum Monte Carlo simulations, this study reveals that infinite-range light-matter interactions in frustrated Rydberg atom triangular arrays lift ground-state degeneracy to induce a novel superradiant clock phase, replacing fragile classical order-by-disorder with a first-order transition driven by nonzero photon density and nonlocal ring exchange interactions.
This paper establishes the theoretical universality of analog quantum simulators under global control, introduces a direct quantum optimal control framework to bridge theory with experimental reality, and demonstrates the successful engineering of complex multi-body interactions and topological dynamics on a Rydberg-atom array.
This paper derives a two-parameter Chern-Simons-Schrödinger energy functional to describe interacting anyons in a trap, revealing how their self-generated magnetic flux and spin-orbit interactions lead to nonlinear Landau levels, stable counter-rotating vortices, and a novel supersymmetry-breaking phenomenon.
This paper presents a differential magnetic sensing technique using a cold-atom cloud in a magnetic quadrupole trap, which achieves milli-Gauss resolution by measuring the displacement of the trap center under field reversal to cancel common-mode noise without requiring spectroscopic interrogation.
This paper introduces a fully digital protocol utilizing local projective measurements and unitary feedback to efficiently prepare algebraically correlated, a priori unknown ground states of frustration-free gapless quantum systems, with performance verified across various models and shown to reveal universal critical properties through transient cooling dynamics.