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

Optical Transmission of 2D Material with Quantum Anomalous Hall Effect

This paper demonstrates that gapped two-dimensional materials exhibiting the quantum anomalous Hall effect display universal optical transmission, reflection, and absorption coefficients at low temperatures that depend solely on the ratio of photonic to gap energy, featuring total reflection at energy equality and recovering graphene's fine-structure constant-dependent behavior in the vanishing gap limit.

Nathan Pravda, Oleg L. Berman, Klaus Ziegler2026-05-25
🔬 mesoscale physics

Localized Excitonic Emission in Wafer-Scale MOCVD-Grown GaSe 2D Nanosheets for Classical and Non-Classical Light Sources

This study demonstrates the wafer-scale MOCVD growth of 2D GaSe nanosheets, revealing that defect-induced localized emission enables both broad classical light and single-photon quantum emission, thereby establishing a scalable platform for integrated photonic technologies.

Bhabani Sankar Sahoo, Nils Fritjof Langlotz, Shachi Machchhar, Kartik Gaur, Robin Günkel, Max Bergmann, Naghmeh Ghadghoo (…)2026-05-25
🔬 mesoscale physics

Commensuration torques in double-moiré twisted trilayer hexagonal boron nitride and graphene heterostructures

This study utilizes large-scale atomistic relaxations to demonstrate that double-moiré commensuration in twisted trilayer hBN and graphene/hBN heterostructures induces local energy minima and torque sign reversals, establishing a system-dependent mechanism for twist-angle stabilization driven by enhanced stacking domain overlap and Coulomb interactions.

Youngju Park, Nicolas Leconte, Prathap Kumar Jharapla, Md Shaifullah, E. H. Hwang, Jeil Jung2026-05-25
🔬 mesoscale physics

Atom-Photon Bound States in Fractal Photonic Lattices: Localization Length and Anomalous Diffusion

This paper demonstrates that atom-photon bound states in self-similar fractal photonic lattices exhibit a far-field localization length scaling inversely with the detuning raised to the power of the walk dimension, a relationship driven by anomalous diffusion and confirmed through exact diagonalization on various fractal geometries.

Florian Bönsel, Flore K. Kunst, Federico Roccati2026-05-25
🔬 mesoscale physics

Quantum critical collapse of a pinned vortex glass

Using plasmonic microwave spectroscopy on amorphous indium oxide films, this study reveals that a pinned vortex glass exhibits an anomalously slow, logarithmic decay of superfluid density driven by collective pinning enhanced by interactions, ultimately vanishing linearly at a continuous quantum critical point that governs the field-driven superconductor-insulator transition.

David Perconte, Thibault Charpentier, Nikolaos Koutsopoulos, Kalpajit Roy, Nadjib Benchabane, Xiaoli Peng, Florent Blond (…)2026-05-25
🔬 mesoscale physics

Quasiparticle Andreev reflection in the Laughlin fractions of the fractional quantum Hall effect

This paper theoretically demonstrates and analytically calculates how quasiparticle Andreev reflection occurs in fractional quantum Hall systems with two quantum point contacts, showing that the ratio of auto- to cross-current correlations serves as a direct signature of this phenomenon and aligns with recent experimental observations.

K. Iyer, T. Martin, J. Rech, T. Jonckheere2026-05-22
🔬 mesoscale physics

New perspective on symmetry breaking in a clean antiferromagnetic chain: Spin-selective transport and NDR phenomenon

This paper proposes and demonstrates a novel mechanism for achieving spin-selective transport and negative differential resistance in clean antiferromagnetic chains by breaking spin symmetry through a bias drop along the functional element, offering a new pathway for designing efficient spintronic devices with zero net magnetization.

Prabhab Patra, Santanu K. Maiti2026-05-22
🔬 mesoscale physics

Su-Schrieffer-Heeger model driven by sequences of two unitaries: periodic, quasiperiodic, aperiodic, and random protocols

This paper investigates the topological and dynamical properties of the Su-Schrieffer-Heeger model driven by sequences of two unitaries under periodic, quasiperiodic, aperiodic, and random protocols, revealing discrepancies between end mode counts and winding numbers in periodic drives, and characterizing the distinct Loschmidt echo behaviors—ranging from long-lived oscillations to rapid decay—across different driving sequences.

Maitri Ganguli, Diptiman Sen2026-05-22