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

Can Majorana zero modes in quantum Hall edges survive edge reconstruction?

This paper demonstrates that edge reconstruction in a ν=1\nu=1 fractional quantum Hall system proximitized by superconductors and ferromagnets generates a ν=1/3\nu=1/3 side strip that doubles the topological sectors to create Z2×Z2Z_2 \times Z_2 degeneracy and a 4π4\pi Josephson periodicity, with distinct signatures appearing in the fractional Josephson current when edge velocities differ.

Kishore Iyer, Amulya Ratnakar, Sumathi Rao, Sourin Das2026-05-01
🔬 mesoscale physics

Quantum transport on Bethe lattices with non-Hermitian sources and a drain

This paper investigates quantum transport on finite-generation Bethe lattices with non-Hermitian sources and a drain, revealing that the current reaches a maximum at a zero mode—often an exceptional point in PT\mathcal{PT}-symmetric systems—where only a limited number of eigenstates effectively penetrate from the periphery to the center, while the remaining states remain localized.

Naomichi Hatano, Hosho Katsura, Kohei Kawabata2026-05-01
🔬 mesoscale physics

Critical temperatures and critical currents of wide and narrow quasi-one-dimensional superconducting aluminum structures in zero magnetic field

This study reports that in zero magnetic field, narrower quasi-one-dimensional aluminum superconducting structures exhibit lower critical temperatures and current densities due to enhanced depairing at dirty longitudinal boundaries, while their temperature-dependent switching currents transition from Kupriyanov-Lukichev behavior at lower temperatures to linear Josephson-like behavior near the transition top, indicating the formation of SNS junctions.

V. I. Kuznetsov, O. V. Trofimov2026-05-01
🔬 mesoscale physics

Theory of quantum decoherence in macroscopic topological insulators

This paper establishes a comprehensive theory demonstrating that quantum decoherence in macroscopic topological insulators induces quadratic corrections to the quantum spin Hall effect and drives a novel, stronger extrinsic spin Hall mechanism via second-order skew scattering, offering a distinct experimental signature for next-generation spintronic applications.

Xian-Peng Zhang, Yan-Qing Feng, Wanxiang Feng, Yugui Yao2026-05-01
🔬 mesoscale physics

Deep Strong light-matter Coupling in 3D Kane Fermions

This paper demonstrates that bulk mercury cadmium telluride layers hosting Kane fermions can achieve record-breaking deep-strong light-matter coupling above room temperature, while a rigorous gauge-invariant theory reveals that an emergent diamagnetic A2A^2 term prevents a superradiant phase transition, thereby resolving a long-standing controversy in cavity quantum electrodynamics.

Dmitriy Yavorskiy, David Hagenmuller, Noureddine Charrouj, Yurii Ivonyak, Alexander Kazakov, Yanko Todorov, Wojciech Kna (…)2026-05-01