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 reports the observation of two-component exciton Bose-Einstein condensates in MoSe2/hBN/WSe2 electron-hole bilayers, demonstrating distinct spin-valley polarized phases and quantum phase transitions up to approximately 1.8 K through magneto-optical spectroscopy.
This paper theoretically investigates the Kondo effect in a spin-3/2 Fermi gas using the s-d exchange model, demonstrating that while the impurity resistance exhibits a logarithmic temperature dependence similar to spin-1/2 systems, the increased spin scattering channels lead to a larger resistance minimum and a more favorable formation of the Kondo singlet ground state, thereby providing theoretical support for realizing this effect with ultra-cold atoms.
This paper identifies and characterizes two distinct classes of inter-species topological phases in a one-dimensional lattice with a dynamical gauge field—extrinsic edge states and intrinsic bulk states—that arise from independent topological invariants, coexist in specific regimes, and can be realized experimentally with cold atoms.
The authors propose using ultracold high-spin YbCr molecules, formed via magneto-association, as a prime candidate for next-generation searches for the electron's electric dipole moment and other beyond-Standard-Model physics due to their favorable properties for polarization and large intramolecular electric fields.
This paper predicts the emergence of a supersolid phase of light in plasma-filled semiconductor microcavities, where photons acquire effective mass and interact via nonlocal plasma-mediated nonlinearities to spontaneously crystallize into a lattice while maintaining superfluid flow, all without requiring hybrid polariton formation or strong light-matter coupling.
This paper theoretically investigates emergent elementary excitations in a two-dimensional Rydberg lattice gas with kinetically constrained long-range interactions, demonstrating that their transition rates to delocalized superposition states exhibit collective many-body enhancement and can be probed via sideband spectroscopy.
Using quantum Monte Carlo and density matrix renormalization group simulations, the authors demonstrate that introducing nearest-neighbor repulsion in the square-lattice Hubbard model stabilizes a novel ferrimagnetic stripe phase intertwined with a checkerboard charge-density-wave, fundamentally altering the system's magnetic ground state beyond the conventional antiferromagnetic stripes.
Using up to 144 qubits on an IBM Quantum processor, this study experimentally probes the many-body localization crossover in quasiperiodic Floquet Ising systems by implementing deep circuits up to 5000 cycles, revealing smooth ergodic-to-localized transitions and logarithmic entanglement growth in both one- and two-dimensional regimes.
This paper demonstrates that interspersing scarred quantum dynamics with stochastic resets to simple product states enables the experimental preparation of local properties of highly entangled many-body scar eigenstates, yielding a stationary state that is locally equivalent to a single pure scarred eigenstate in the sparse-resetting limit.
This paper utilizes ultra-high resolution numerical simulations of the model to reveal that low-energy hole pairs in lightly doped antiferromagnetic Mott insulators form two coupled branches arising from the hybridization of bipolaronic and magnetic polaron states, a phenomenon explained by an effective two-channel model and proposed for experimental verification via Raman spectroscopy in ultracold atom systems.