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.

Certifying ergotropy under partial information

This paper introduces a general framework for certifying lower bounds on quantum ergotropy using only partial information from a limited set of observables, providing robust, confidence-certified estimates that account for statistical noise and demonstrating its effectiveness through both synthetic and experimental data on an IBM quantum processor.

Egle Pagliaro, Leonardo Zambrano, Mir Alimuddin, Alioscia Hamma, Antonio Acín, Donato Farina2026-03-20🔬 cond-mat.mes-hall

Boltzmann-Bloch Equation Approach to the Theory of the Optical Inter- and Intraband Response in Noble Metals

This paper introduces a momentum-resolved Boltzmann-Bloch equation framework that incorporates many-body interactions and anisotropic electronic dispersion to provide a microscopic description of the temperature-dependent linear optical response in gold, offering deeper insight into the interplay of intra- and interband processes than traditional phenomenological models.

Robert Lemke, Matthias Rössle, Holger Lange, Andreas Knorr, Jonas Grumm2026-03-20🔬 cond-mat.mes-hall

Imaging short- and long-range magnetic order in a quantum anomalous Hall insulator

Using scanning superconducting quantum interference device microscopy, this study reveals that V-doped (Bi,Sb)2_2Te3_3 exhibiting the quantum anomalous Hall effect possesses a unique magnetic state characterized by the coexistence of local interactions within crystallographic grains and long-range ferromagnetic coupling between them, a behavior distinct from that of Cr-doped counterparts.

Andriani Vervelaki, Boris Gross, Daniel Jetter, Katharina Kress, Timur Weber, Dieter Koelle, Kajetan M. Fijalkowski, Martin Klement, Nan Liu, Karl Brunner, Charles Gould, Laurens W. Molenkamp, Martino (…)2026-03-20🔬 cond-mat.mtrl-sci

Cavity Control of Strongly Correlated Electrons Beyond Resonant Coupling

This paper presents a non-perturbative, first-principles framework demonstrating that off-resonant cavity coupling can significantly enhance the magnetic exchange interaction in correlated electron systems via a generalized Purcell factor, provided that both static Coulomb screening and dynamical vector potential effects are consistently accounted for in the presence of dielectric substrates.

Lukas Grunwald, Xinle Cheng, Emil Viñas Boström, Michael Ruggenthaler, Marios H. Michael, Dante M. Kennes, Angel Rubio2026-03-20🔬 cond-mat.mes-hall

Active Quantum Particles from Engineered Dissipation

This paper introduces and characterizes various models of active quantum particles driven by engineered dissipation, demonstrating that despite diverse microscopic mechanisms, they universally exhibit a crossover from diffusive to active-diffusive motion and a strong sensitivity to boundary conditions via the Liouville skin effect, while also discussing their quantum fluctuations, experimental realizations, and many-body implications.

Jeanne Gipouloux, Matteo Brunelli, Leticia Cugliandolo, Rosario Fazio, Marco Schirò2026-03-20🔬 cond-mat.mes-hall

Ferroelectric pp-wave magnets

This paper proposes a new strategy for achieving ferroelectric pp-wave magnets by identifying time-reversal-symmetric spin-polarized insulating states in noncollinear magnetic ferroelectrics, classifying their symmetry-breaking mechanisms, and experimentally validating the electrical switching of such order in GdMn2O5\mathrm{GdMn_2O_5} to enable novel spintronic functionalities.

Jan Priessnitz, Anna Birk Hellenes, Riccardo Comin, Libor Šmejkal2026-03-20🔬 cond-mat.mtrl-sci

Frozonium: Freezing Anharmonicity in Floquet Superconducting Circuits

This paper introduces the "frozonium," a Floquet-engineered superconducting circuit that utilizes periodic drives to effectively freeze anharmonicity and transform a nonlinear Josephson junction into a linear bosonic oscillator with enhanced noise protection, thereby enabling new avenues for quantum memory and bosonic control.

Keiran Lewellen, Rohit Mukherjee, Haoyu Guo, Saswata Roy, Valla Fatemi, Debanjan Chowdhury2026-03-19🔬 cond-mat.mes-hall

Unveiling Topological Hinge States in the Higher-Order Topological Insulator WTe2_2 Based on the Fractional Josephson Effect

This study provides experimental evidence for topological hinge states in the higher-order topological insulator WTe2_2 by observing the absence of the first Shapiro step in Al-WTe2_2-Al Josephson junctions, a signature attributed to a 4π\pi-periodic current-phase relationship that supports the pursuit of Majorana zero modes and topological quantum applications.

Yong-Bin Choi, Jinho Park, Woochan Jung, Sein Park, Mazhar N. Ali, Gil-Ho Lee2026-03-19🔬 cond-mat.mes-hall