668 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 investigates the many-body physics of the four-dimensional quantum Hall effect by constructing Laughlin-inspired microscopic wavefunctions and demonstrating through exact diagonalization that they form an incompressible quantum liquid.
This paper introduces a scalable variational method combining matrix product operators and time-dependent variational Monte Carlo to efficiently simulate the non-equilibrium dynamics and steady states of open quantum many-body systems with long-range competing interactions in one and two dimensions.
This paper demonstrates that the quantum field theory of perfect fluids, which is typically difficult to interpret due to zero-dispersion vortex modes, can be successfully analyzed using semi-classical Gaussian initial states that act as an infrared regulator to produce well-defined, non-local stress tensor correlators.
This paper demonstrates that scrambling information into many-body correlations via volume-law entanglement protects quantum metrological precision against particle loss, allowing a subsystem to recover the full quantum Fisher information as long as it remains larger than half of the total particles.
This paper investigates the formation and stability of ring-shaped and multipole vortical quantum droplets in non-rotating dipolar Bose-Einstein condensates within a toroidal trap, demonstrating how the interplay between dipole-dipole interactions and Lee-Huang-Yang corrections enables the existence of complex, necklace-like self-bound states.
Using neural quantum states to simulate a mixed-dimensional -- model, this study provides the first high-precision numerical evidence for superconductivity in two-dimensional bilayers, identifying a crossover between BEC and BCS pairing regimes and a transition between interlayer -wave and intralayer -wave symmetries.
This paper investigates the impact of a quench from strong repulsive to strong attractive interactions within the extended Bose-Hubbard model, discovering that a specific range of non-local interactions causes the super-Tonks-Girardeau state to undergo rapid expansion and evaporation.
This paper presents a self-consistent theory that resolves the issue of imaginary phonon velocity in binary Bose mixtures by accounting for pair correlations, thereby identifying a stable region where quantum liquid droplets can exist.
This paper introduces a new framework for uncertainty relations based on "operator asymmetry," which provides tighter bounds than the standard Robertson relation, resolves a long-standing problem regarding Wigner-Yanase skew information, and enables more precise quantum speed limits for nearly conserved quantities.
The researchers demonstrate an experimental method to engineer tunable thermal reservoirs in a trapped-ion system, enabling the study of open-system quantum dynamics and temperature-dependent energy transfer processes.