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 presents a scalable, monolithic fabrication strategy that integrates high-stress silicon nitride membranes with distributed Bragg reflectors using dry processing techniques, achieving self-aligned optomechanical cavities with high optical finesse and mechanical quality factors while eliminating the alignment and stability bottlenecks of conventional methods.
This study demonstrates that embedding a single GaAs quantum dot in a dielectric metasurface enables simultaneous anti-bunched and super-bunched photon emission from neutral and charged exciton complexes, respectively, by enhancing weak charged exciton transitions to achieve comparable count rates.
Addressing the breakdown of Bloch's theorem in spatially varying composites, this paper establishes a foundational ab initio quantum theoretical framework for functionally graded materials that derives effective field equations for modulated Bloch states, revealing non-tensorial electromagnetic properties and enabling the predictive design of optimized electronic devices such as graded p-n junctions.
This study utilizes optical pump-terahertz probe spectroscopy to reveal that ultrafast photoconductivity in epitaxial graphene nanoribbons exhibits a non-monotonic fluence dependence driven by an interplay between negative-sign conductivity from secondary hot carriers at low fluences and positive-sign conductivity from excess carriers at high fluences, resulting in complex variations in mobility and plasmonic resonance.
This paper introduces a complexity-boosted distance measure that enables pure data-driven, unsupervised machine learning to accurately classify quantum many-body phases from time series data without prior knowledge, demonstrating robustness against noise and potential applications in predicting natural disasters and financial trends.
This paper presents a novel on-chip superconducting nanomechanical platform that achieves unprecedented parallelism and micro-Pascal pressure resolution, enabling the first high-resolution sensing of Casimir forces across a superconducting transition while effectively suppressing competing environmental effects.
This paper presents a quantum theoretical framework using an effective center-of-mass Hamiltonian to explain the transition from integer to fractional topological pumping of lattice solitons in interacting Aubry-André-Harper systems, identifying an effective single-particle Chern number as the governing invariant and attributing the observed phase transitions to the merging of center-of-mass bands.
This paper introduces and experimentally validates "Dichography," a method that algorithmically separates overlapping diffraction signals from two time-delayed, multi-color X-ray pulses to reconstruct two distinct ultrafast images of nanoscale samples from a single detector pattern, thereby enabling the capture of structural dynamics before significant radiation damage occurs.
This paper demonstrates a folded-bilayer graphene spin-valve device that achieves giant non-local spin signals in the millivolt range and pronounced spin-rectification effects, establishing a promising platform for active two-dimensional spintronic applications.
This study investigates the broadband terahertz conductivity and ultrafast photoconductivity of multilayer epitaxial graphene nanoribbons, revealing that near-field imaging detects nanoscale inhomogeneities while far-field spectroscopy distinguishes doped substrate layers from quasi-neutral layers that exhibit high mobility and strong positive photoconductivity driven by carrier temperature-dependent scattering mechanisms.