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.

⚛️ high-energy theory

The Information Content of Krylov Observables: A Machine Learning Approach

This paper employs machine learning to demonstrate that while Krylov observables like spread complexity and Wigner negativity can effectively classify symmetry classes and estimate thermofield temperatures, the normalized negativity uniquely captures the informational surplus of chaos by resolving spectral degeneracies and distinguishing second-moment dynamics from fine-grained spectral form factor features.

Ritam Basu2026-07-21
🔢 mathematics

Optimal Covariance Estimates for Schrödinger Semigroups with White Noise in d=1,2d=1,2

This paper establishes optimal asymptotic bounds on the covariance of the trace of Schrödinger semigroups perturbed by white noise in dimensions one and two using Feynman-Kac formulas and Brownian bridge local times, thereby improving existing results for d=1d=1, providing the first such estimates for d=2d=2, and applying these findings to prove quantitative hyperuniformity and decorrelation properties.

Youssef Djellouli, Pierre Yves Gaudreau Lamarre2026-07-21
🔢 mathematics

Finite Potential Energy for Entire Solutions of the Planar Ginzburg--Landau Equation

This paper resolves Brezis' Open Problem 2.5 by proving that every smooth entire solution of the planar Ginzburg--Landau equation approaching unit modulus at infinity possesses finite potential energy, achieved through a novel analysis of circulation modes, Kelvin inversion, and coercivity estimates that establish the necessary L2L^2 decay.

Hongge Chen, Juncheng Wei, Haicheng Yan, Wen Yang2026-07-21