2808 papers
Explore the fascinating intersection where quantum materials meet the complexity of everyday environments in the Cond-Mat — Mes-Hall section. This field investigates how tiny particles behave when caught between the orderly world of single atoms and the chaotic nature of bulk matter, revealing the hidden rules that govern electricity, magnetism, and heat in novel substances.
Gist.Science brings these cutting-edge discoveries to you directly from arXiv, the leading repository for physics preprints. We process every new submission in this category as soon as it appears, offering both straightforward, plain-language explanations and deep technical summaries to help researchers and curious minds alike grasp the latest breakthroughs without getting lost in dense equations.
Below are the most recent papers in this dynamic area of condensed matter physics, ready for you to explore.
This paper presents a systematic experimental study of gallium arsenide surface acoustic wave resonators in the gigahertz range at cryogenic temperatures, achieving quality factors up to 28,000 and establishing practical design guidelines for scalable quantum acoustic and hybrid systems.
This paper demonstrates that material defects in tunnel junctions can create strongly coupled two-level systems (TLS) that interact with both transmon qubits and their readout resonators, causing frequency shifts that degrade readout fidelity and hinder the development of solid-state quantum processors.
This paper analytically investigates the boundary conditions of Dirac fermion models for first and second-order topological insulators, deriving edge and hinge state dispersions to reveal how Hamiltonian symmetry constrains boundaries and establishes an edge-hinge analog of the bulk-edge correspondence where gapped edge topology guarantees gapless hinge states.
This article theoretically derives the fundamental noise characteristics for gaseous flows in nanoscale channels, including thermal and shot noise regimes as well as higher-order statistics such as the third cumulant, in both the classical and quantum mechanical (Fermi-Dirac and Bose-Einstein) regimes, while drawing analogies to electrical transport.
This work demonstrates that highly mobile GaAs/AlGaAs two-dimensional electron gases exhibit viscous hydrodynamic flow in concentric ring-shaped Corbino structures at temperatures below 1 K, a phenomenon confirmed by nonlocal transport measurements and Navier-Stokes simulations, thereby underscoring the critical role of electron-electron interactions in radially confined transport.
This article generalizes the dynamical 3-winding number invariant of minimal two-band systems to generic multiband Chern insulators, proves its equivalence to the difference of Chern numbers between post- and pre-quench Hamiltonians, and reveals unique multiple fermion structures in the phase band that are inaccessible in two-band models.
This article reports on the discovery of a temperature-independent intrinsic anomalous Hall effect in a 68 nm pure bismuth device over a temperature range from 15 mK to 300 K, which is attributed to an inversion-symmetry-breaking surface Berry curvature despite the diamagnetic character of the material.
This study advances the understanding and optimization of nanoparticle-in-nanoslit (NPoS) antennas by characterizing their quasi-normal modes to enable independent tuning of dual resonances and identifying a new fundamental resonance that could theoretically boost mid-infrared frequency upconversion efficiency by five-fold.
This paper establishes a universal empirical scaling relation between microwave dissipation and superfluid density across diverse superconducting materials and geometries, revealing an intrinsic bulk dissipation limit caused by nonequilibrium quasiparticles trapped in disorder-induced gap variations that sets a fundamental bound on superconducting qubit coherence.
This contribution presents a fully planar, laterally excited high-overtone bulk acoustic resonator (X HTBAR) based on a 128° Y-cut LiNbO₃ film, which achieves an energy transfer efficiency of over 99%, high quality factors, and scalable mode volumes, thereby offering a robust solution for multimodal phonon sources in quantum interconnects and microwave photonic circuits.