2818 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 demonstrates that while Berry curvature does not affect quantized nonlinear transport in translationally invariant two-dimensional Fermi gases, the introduction of spatial inhomogeneity causes this quantization to break down due to the interplay between Berry curvature and potential gradients, a phenomenon observable in trapped ultracold atoms.
Using scanning tunneling microscopy, researchers discovered that ionized indium impurities on black phosphorus induce anomalous, anisotropic charge modulations that defy simple band-structure predictions, demonstrating a new pathway for creating macroscopic charge orders through impurity engineering.
This paper investigates the vacuum expectation values of the field squared and energy-momentum tensor for a charged scalar field on a (2+1)-dimensional Beltrami pseudosphere with a compactified azimuthal coordinate, revealing that while geometric contributions are divergent, topological effects are finite and exhibit distinct power-law behaviors depending on the field mass, curvature coupling, and compactification scale.
Using time-dependent Hartree-Fock calculations, this paper demonstrates that the transition from Wigner crystals to anomalous Hall crystals induces band inversions in collective modes, resulting in topological phonons with a sharp sign change in their Chern number that could serve as a distinct experimental signature for these elusive phases.
This paper demonstrates a monolithic, two-step epitaxial growth method using buried stressors to fabricate precisely positioned, site-controlled InGaAs quantum dots with tunable local densities, enabling the integration of single-photon sources and microlasers on a single photonic chip for advanced quantum technologies.
This tutorial provides an overview of macroscopic quantum electrodynamics and its extension to active media, demonstrating how gain modifies field correlations to influence fluctuation-induced forces and other radiative and mechanical phenomena.
This paper demonstrates that applying an Aharonov-Bohm flux to magnetic diamond chains with flat bands significantly amplifies short-range magnetic couplings and enhances magnon thermal conductivity, revealing a direct connection between the flux-dependent coupling decay length and the quantum metric of the flat bands.
This study introduces resonance-enhanced four-wave mixing imaging as a high-resolution, defect-sensitive technique to map and characterize vanadium-induced defect regions in WS2 monolayers, revealing nanoscale doping inhomogeneities and their impact on excitonic and vibrational properties through a multi-modal approach supported by density functional calculations.
This study utilizes finite element modeling to demonstrate that optimizing material properties and geometric parameters in nanoscale magnetoelectric composite pillars can overcome scaling limitations to generate output voltages exceeding 200 mV, thereby highlighting their potential for microelectronic integration.
This paper presents a parameter-free microscopic approach that successfully reproduces experimental photoluminescence spectra of CdSe/CdS nanocrystals by demonstrating that second-order diagonal vibronic couplings are the dominant source of homogeneous linewidth broadening at temperatures above 100–150 K, while off-diagonal couplings play a negligible role until near room temperature.