Mathematical physics sits at the fascinating intersection where abstract equations meet the fundamental laws of our universe. This field uses rigorous mathematical tools to model everything from the behavior of subatomic particles to the curvature of spacetime, turning complex theories into testable predictions. It is the language through which physicists describe reality, bridging the gap between pure mathematics and physical observation.

On Gist.Science, we process every new preprint published in this category on arXiv to make these dense studies accessible to everyone. Whether you are a specialist or a curious reader, you will find both plain-language overviews and detailed technical summaries for each paper. Below are the latest mathematical physics papers from arXiv, curated to help you explore the cutting edge of theoretical science.

🔢 mathematics

Weak Poincaré Inequalities via Approximate Stochastic Localization: Application to Sampling the Sherrington-Kirkpatrick Model

This paper introduces a novel method using approximate stochastic localization to prove a weak Poincaré inequality for the Sherrington-Kirkpatrick model at β<12\beta < \frac{1}{2}, thereby demonstrating that Glauber dynamics with a warm start efficiently samples its Gibbs measure.

Ewan Davies, Holden Lee, Juspreet Singh Sandhu, Jonathan Shi2026-07-10
⚛️ general relativity

Chaplygin and Polytropic Kantowski--Sachs Solutions in Teleparallel F(T)F(T) Gravity

This paper develops a covariant reconstruction framework in teleparallel F(T)F(T) gravity to derive specific functional forms of the gravitational Lagrangian for Kantowski--Sachs geometries sourced by Chaplygin and polytropic fluids, utilizing nonlinear matter conservation laws to reverse the standard reconstruction strategy and identify viable anisotropic cosmological and black-hole-interior branches.

Alexandre Landry2026-07-10
🔢 mathematics

Exactly solved Schrödinger equations with time-dependent Hamiltonians

This paper presents exact, assumption-free analytical formulas for the evolution operators of four time-dependent Hamiltonians relevant to quantum spin batteries by employing a novel combination of ⋆\star-algebra, path-sums, and Omega calculus, thereby enabling the recovery and extension of existing approximations and providing explicit exact formulas for Floquet Hamiltonians at all orders.

Michael Warnock, Antônio Francisco Neto, Pierre-Louis Giscard, Omid Faizy, Christian Joachim2026-07-10
🔢 mathematics

Quantum filtering and propagation of chaos for open quantum systems, with applications to quantum feedback control and quantum mean-field games

This survey paper presents a rigorous mathematical theory for quantum filtering equations in infinite-dimensional mixed-state systems, resolves a longstanding open problem in their derivation, and explores their applications to feedback control, quantum dynamics, and mean-field games through propagation of chaos limits.

Vassili N. Kolokoltsov2026-07-10
🔢 mathematics

Soft edge limit of the Laguerre beta-ensemble at the lower edge

This paper establishes that the lower edge of the appropriately scaled Laguerre beta-ensemble converges to the Airy⁡β\operatorname{Airy}_{\beta} process as n→∞n\to \infty when the parameter ana_n satisfies an→∞a_n\to \infty and an/n→0a_n/n\to 0, thereby completing the classification of its edge scaling limits through operator-level convergence proofs and coupling arguments.

Yun Li, Benedek Valkó, Jiaming Xu2026-07-10
🔢 mathematics

Temperature Beyond Equilibrium in Isolated Quantum Many-Body Systems and Their Subsystems

This paper proposes a generalized definition of temperature for isolated quantum many-body systems out of equilibrium by locating non-stationary states within a family of regular states compatible with their energy-coherence structure, thereby replacing the principle of maximum entropy with a principle of minimum discrimination information and extending the framework to subsystems via induced local thermodynamic structures.

Maurizio Fagotti2026-07-10