🔬 Category

cond-mat.mes-hall

2798 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.

🔬 mesoscale physics

Topological metal-insulator transitions in one-dimensional non-Hermitian quasicrystals: beyond PT-symmetry

This paper investigates a non-PT-symmetric one-dimensional non-Hermitian quasicrystal model, demonstrating that it generally supports triple phase transitions involving localization, topology, and degeneracy breaking, while also exhibiting distinct localization-delocalization transitions without topological or degeneracy-breaking changes, thereby extending the understanding of topological metal-insulator transitions beyond PT-symmetric systems.

Guangjie Zhang, Bing Shao, Longwen Zhou, Jiangbin Gong, Weiwei Zhu2026-05-26
🔬 mesoscale physics

Non-Hermitian Twisting Theory under the open boundary condition

This paper develops a site-resolved Non-Hermitian Twisting Theory using local scaling transformations and the Zahlen-Brillouin Zone to generalize the description of the skin effect to non-periodic and disordered systems, unifying metric operators with Riemannian geometry to establish a universal paradigm for real-space localization and phase transitions.

Chen-Hao Zhao, Jia-Rui Li, Yuping Tian, Wei-Jiang Gong2026-05-26
🔬 mesoscale physics

AI-Driven SERS for Non-invasive and Label-Free Extracellular Vesicle Detection Across Cellular Origins in Tears and Sweat

This paper presents an AI-driven, label-free Surface-enhanced Raman spectroscopy (SERS) platform that enables rapid, high-accuracy identification of extracellular vesicles from diverse cellular origins in non-invasive tear and sweat samples, offering a promising tool for personalized disease diagnosis.

Yang Li, Xiaoming Lyu, Ling Xia, Kuo Zhan, Haoyu Ji, Lei Qin, Seppo J. Vainio, Jian-An Huang2026-05-26
🔬 optics

Absolute measurement of the intrinsic helicity in nanophotonics

This paper demonstrates both theoretically and experimentally that the intrinsic helicity of chiral nanophotonic systems can be rigorously defined and measured by exciting them with a focused electron beam and symmetrizing the excitation and detection geometry, thereby overcoming the limitations of traditional circularly polarized light-based methods.

Malo Bézard, Simon Garrigou, Jérémie Béal, Andreas Horrer, Yves Auad, Hugo Lourenço-Martins, Davy Gérard, Mathieu Kociak2026-05-26
🔬 mesoscale physics

Observation of the Optical Phonons in {\alpha}-MnTe films

This paper reports the successful molecular beam epitaxy growth of high-quality α\alpha-MnTe thin films on GaAs(111)B substrates and their comprehensive characterization, which, through Raman spectroscopy and first-principles calculations, enables the complete experimental resolution of all symmetry-allowed optical phonon modes to establish a robust platform for investigating altermagnetism.

Himanshu Sheokand, Arun K Kumay, Mazharul Islam Mondal, Milo Sprague, Ravinder Sharma, Jayan Thomas, Dariusz Kaczorowski (…)2026-05-26
🔬 mesoscale physics

A simple quantum dot: numerical and variational solutions

This paper investigates a simple quantum dot formed by two crossed 2D troughs that supports a bound state despite lacking a traditional potential well, demonstrating that the mode-matching method yields the most accurate numerical solution and the lowest energy analytical variational wave function for the system.

Connor Walsh, Ian MacPherson, Davidson Joseph, Suyash Kabra, Ripanjeet Singh Toor, Mason Protter, Frank Marsiglio2026-05-25
🔬 mesoscale physics

Pair density wave in quarter metals from a repulsive fermionic interaction in graphene heterostructures: A renormalization group study

This paper employs a renormalization group analysis to demonstrate that repulsive density-density interactions in the polarized quarter-metal phase of chirally stacked graphene heterostructures can induce a chiral, odd-parity pair density wave superconducting state, offering a theoretical explanation for experimentally observed superconductivity near this regime.

Sk Asrap Murshed, Bitan Roy2026-05-25
🔬 mesoscale physics

Surface States in Strain-Induced Nodal-Line Topological Semiconductors

This paper utilizes a minimalistic Luttinger Hamiltonian model to map the topological phase transitions of strained inverted-band-gap semiconductors among 3D topological insulators, Dirac, nodal-line, and Weyl semimetals, while deriving analytical surface state solutions that reveal their continuous evolution and a non-analytic dispersion feature at the projected nodal line.

Vitaly N. Golovach, Alexander Khaetskii2026-05-25