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 extends the concept of symmetry-fractionalization to non-Hermitian systems by demonstrating that skin effects associated with different symmetry sectors, such as spin and charge, exhibit emergent decoupling in one-dimensional gapless systems, a phenomenon verified numerically for the Hubbard model and theoretically constructed for an interaction-enabled skin effect.
This paper identifies a distinct mechanism for fractionalization in doped two-dimensional SU(4) quantum magnets on frustrated triangular lattices, where hole doping relieves kinetic frustration by splitting holes into fermionic spinons and bosonic holons, while electron doping drives the system into a ferromagnetic phase.
This paper proposes and numerically validates an experimentally feasible optical technique using a -coupled three-level system to generate stable dark-bright solitons and long-lived soliton lattices in multicomponent Bose-Einstein condensates, whose post-quench dynamics depend critically on the equality of scattering lengths.
This paper demonstrates a novel dissipation-induced topological gear switching mechanism where quantized soliton transport can be dynamically controlled by pumping speed through aperiodic, time-varying nonlinearities, establishing a new paradigm for nonequilibrium nonlinear topological matter distinct from both conservative nonlinear and linear non-Hermitian systems.
This paper proposes and analyzes a dynamical protocol using a sweeping repulsive barrier to transform an incoherent array of dipolar quantum droplets into a coherent supersolid state, characterized by a persistent superfluid background and synchronized crystal oscillations.
This paper establishes the convergence of the ground state energy of the Bose-Hubbard model on graphs with large coordination number to a strong-coupling mean-field functional by developing and applying a novel "polaron-type" quantum de Finetti theorem tailored for tensor products involving bosonic Fock spaces.
This paper proposes concrete protocols for extending quantum gas microscopes to measure conjugate variables and momentum-weighted densities in phase space by mapping momentum onto auxiliary degrees of freedom, distinguishing between a Husimi-Q mode that jointly measures position and momentum with fundamental noise in position, and an averaged mode that retrieves spatially resolved momentum density averages.
This paper demonstrates that the expansion dynamics of a one-dimensional hard-core boson gas released from a domain wall in the presence of two weak links exhibit genuine quantum interference fringes and coherent patterns that deviate from standard hydrodynamic predictions, providing an exact analytic description of these effects through fermionic propagators.
This paper investigates the superfluid response of dilute bosonic fluids in two-dimensional composite optical potentials by establishing conditions for isotropy, deriving analytical expressions for Leggett's bounds to identify optimal measurement directions, and confirming these findings through numerical simulations.
This paper proposes a quasiparticle theory modeling socks as bosonic excitations in an agitated laundry condensate, explaining the universal phenomenon of missing socks through mechanisms such as Beliaev decay, Landau-Khalatnikov scattering, and dynamical Casimir pair creation.