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.

Robust Floquet-induced gap in irradiated graphite

Using time- and angle-resolved photoemission spectroscopy with intense mid-infrared pumping, researchers demonstrate that bulk graphite exhibits robust, light-induced Floquet gaps and coherent sidebands that persist despite interlayer coupling and photo-excitation, establishing it as a viable platform for manipulating Dirac fermions and engineering quantum phases.

Fei Wang, Xuanxi Cai, Wanying Chen, Jinxi Lu, Tianshuang Sheng, Xiao Tang, Jiansong Li, Hongyun Zhang, Shuyun Zhou2026-03-31🔬 cond-mat.mes-hall

Observation of Floquet-induced gap in graphene

This study reports the first direct experimental observation of a light-induced Floquet hybridization gap in monolayer graphene using time- and angle-resolved photoemission spectroscopy, confirming the existence of Floquet topological phases and revealing their momentum anisotropy and tunability via light polarization.

Fei Wang, Xuanxi Cai, Xiao Tang, Jinxi Lu, Wanying Chen, Tianshuang Sheng, Runfa Feng, Haoyuan Zhong, Hongyun Zhang, Pu Yu, Shuyun Zhou2026-03-31🔬 cond-mat.mes-hall

Exploring Native Atomic Defects in NiTe2

This study combines high-resolution scanning tunneling microscopy and first-principles calculations to systematically identify five types of native atomic defects in the type-II Dirac semimetal NiTe2, revealing how synthesis conditions influence defect formation and how these defects can be manipulated to tune the material's electronic and topological properties.

Wen-Xiao Wang, Kaihui Li, Xiaoshan Dong, Hao Xie, Jinglan Qiu, Chunqiang Xu, Kai Liu, Juntao Song, Yi-Wen Wei, Ke-Ke Bai, Xiaofeng Xu, Ying Liu2026-03-30🔬 cond-mat.mes-hall

Weakly interacting one-dimensional topological insulators: a bosonization approach

This paper employs bosonization to investigate weakly interacting one-dimensional topological insulators, demonstrating that chiral symmetry protects edge state degeneracy, that topological indices are determined by inter-chain coupling types, and that general topological phases with index ν\nu are equivalent at low energies to theories of at least ν\nu Su-Schrieffer-Heeger chains.

Polina Matveeva, Dmitri Gutman, Sam T. Carr2026-03-30🔬 cond-mat.mes-hall

Telecom wavelength single-photon emission from quasi-resonantly excited InGaSb/AlGaSb quantum dots

This paper demonstrates the first deterministic single-photon emission at the telecom wavelength of 1500 nm from droplet-etched InGaSb/AlGaSb quantum dots by combining antimonide-based materials with advanced excitation techniques to resolve excitonic fine structure and enable high-quality quantum light sources for fiber-optic networks.

Teemu Hakkarainen, Joonas Hilska, Arttu Hietalahti, Sanna Ranta, Markus Peil, Robert Matysiak, Emmi Kantola, Abhiroop Chellu, Efsane Sen, Jussi-Pekka Penttinen, Anna MusiaŁ, MichaŁ GaweŁCzyk (…)2026-03-30🔬 cond-mat.mes-hall

Dirac bilinears in condensed matter physics: Relativistic correction for observables and conjugate electromagnetic fields

Inspired by recent developments in electron chirality, this paper bridges condensed matter, quantum chemistry, and particle physics by deriving the non-relativistic limits of Dirac bilinears to identify overlooked microscopic physical quantities and their conjugate electromagnetic fields, thereby enabling the *ab initio* quantification of chirality and axiality in low-symmetry materials for electromagnetic control.

Shintaro Hoshino, Tatsuya Miki, Michi-To Suzuki, Hiroaki Ikeda2026-03-30🔬 cond-mat.mtrl-sci