🔬 Category

cond-mat.mes-hall

2764 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

Machine learning prediction of the convergence criterion for a topological invariant of finite non-Hermitian chains

This paper demonstrates that machine learning, specifically random-forest regression, can accurately predict the optimal crop-length parameter for calculating topological invariants in finite non-Hermitian chains by linking it to physical decay lengths and characteristic polynomial structures, thereby providing a robust, generalizable, and disorder-resilient method to capture topology near phase transitions.

Raghav Chaturvedi, Viktor Könye, Ewelina M. Hankiewicz2026-07-08
🔬 mesoscale physics

Weak-coupling altermagnetism and chiral magnetic excitations in a checkerboard lattice

This paper demonstrates that the checkerboard lattice within a weak-coupling Hubbard model naturally supports altermagnetism, characterized by a sequence of phase transitions from a nonmagnetic semimetal to an altermagnetic insulator and the emergence of chiral, direction-dependent magnetic excitations that mirror the alternating spin splitting of the electronic bands.

Abhigya Rangari, Manna Paul, Sayandip Ghosh2026-07-08
🔬 mesoscale physics

Coherence Estimation Beyond the Liouvillian Gap in a Finite Nonequilibrium System

This paper demonstrates that while coherence estimation in finite nonequilibrium systems is typically limited to a transient window due to the breakdown of scaling between the Liouvillian gap and optimal sensing time, coupling the system to a quantum cavity under thermal bias can transform this transient optimization into a sustained steady-state metrological resource.

Sonali Brahma, Trishna Kalita, Himangshu Prabal Goswami2026-07-08
🔬 mesoscale physics

Chiral Graviton Modes in Non-Abelian lattice Fractional Quantum Hall states

This paper demonstrates, through multiple numerical simulations, the existence of a long-lived chiral graviton mode in a non-Abelian lattice fractional quantum Hall state realized in a bosonic Harper-Hofstadter model, providing a topological-sector-independent signature observable via geometric quenches in current cold-atom experiments.

Zeno Bacciconi, Min Long, Hernan Xavier, Hongyu Lu, Marcello Dalmonte, Zi Yang Meng2026-07-08
🔬 materials science

Phonon-Mediated Thermal Transport in Nanocrystalline Silicon Using Machine-Learning Interatomic Potentials

This study develops a machine-learning interatomic potential framework combining GAP and MACE models with lattice-dynamical and non-equilibrium molecular dynamics simulations to provide a more accurate and internally consistent description of phonon-mediated thermal transport and grain boundary resistance in nanocrystalline silicon compared to classical potentials.

Houssem Rezgui, Catalina Coll Benejam, Miguel Pruneda, Clivia M. Sotomayor Torres2026-07-08
🔬 mesoscale physics

Correlated Insulating States in Twisted Double Bilayer Graphene Enhanced by Interfacial Effect on CrOCl

This study demonstrates that placing twisted double bilayer graphene on an antiferromagnetic CrOCl substrate enhances correlated insulating states at half-filling through interfacial charge transfer rather than magnetic exchange, offering a new pathway for engineering correlated states in moiré systems.

Ning Ma, Zekang Zhou, Chiara Cocchi, Maurice Bal, Maarten van Delft, Kenji Watanabe, Takashi Taniguchi, Steffen Wiedmann (…)2026-07-08
🔬 mesoscale physics

Half state at νtot\nu_{tot} = -1/2 and its transition in Decoupled Twisted Double Bilayer Graphene

This study demonstrates that decoupled twisted double bilayer graphene serves as a tunable platform for double quantum Hall systems, where magnetotransport measurements reveal a fractional state at νtot\nu_{tot} = -1/2 that transitions from a two-component Halperin-Laughlin state to a one-component non-Abelian state upon adjusting the displacement field.

Ning Ma, Kenji Watanabe, Takashi Taniguchi, Mitali Banerjee2026-07-08
🔬 mesoscale physics

Nonlinear optical charge state switching and pumping to a diamond NV center dark state

By utilizing a nanoscale cavity to generate intense infrared fields, this study identifies that the photoluminescence quenching in diamond nitrogen-vacancy centers is caused by nonlinear two-photon pumping into a previously misunderstood dark state of the neutral NV charge, thereby characterizing its energy levels and lifetime to establish performance limits for future quantum technologies.

Prasoon K. Shandilya, Vinaya K. Kavatamane, Sigurd Flågan, David P. Lake, Denis Sukachev, Paul E. Barclay2026-07-07