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.

🌀 nonlinear sciences

Direct linearization, Cauchy matrix and Sato Grassmannian

This paper establishes a geometric framework linking Fu and Nijhoff's direct linearization scheme to the Sato Grassmannian, demonstrating that the evolution of specific matrix elements corresponds to affine coordinates of the Grassmannian and that extending this system with negative flows yields an equivalence to the two-component KP hierarchy while providing a geometric interpretation of the Cauchy matrix approach.

Kanehisa Takasaki2026-08-26
🔢 mathematics

Physics Attention Transformer Surrogate for Rapid Vertical Instability Growth Rate Prediction: Alcator C-Mod to SPARC

This paper demonstrates that a Physics Attention Transformer surrogate model can rapidly and accurately predict vertical instability growth rates and perturbed current densities for Alcator C-Mod and SPARC equilibria, outperforming traditional operator-based machine learning models while meeting the latency requirements for real-time plasma control.

Arunav Kumar, Cesar Clauser, Theodore Golfinopoulos, Cristina Rea, Francesco Capersene, Dan Boyer, SPARC Team, Alcator C (…)2026-08-26
🔢 mathematics

Mass scaling of the near-critical Ising model in dimensions d4d\geq 4

This paper establishes near-critical bounds on the truncated two-point function for the Ising model in dimensions d4d \geq 4, proving that the associated mass scales as max((βcβ)1/2,h1/3)1+o(1)\max((\beta_c-\beta)^{1/2}, h^{1/3})^{1+o(1)} by combining recent results at zero field with an interpolation argument based on the random current representation.

Romain Panis2026-08-26
⚛️ high-energy theory

Integrating curved Yang-Mills gauge theories

This paper constructs a generalized gauge theory based on principal bundles with a Lie group bundle action by introducing multiplicative Yang-Mills connections and modifying the curvature definition to accommodate a curved connection on the structure group, thereby extending classical gauge theory to include curved geometries and providing a classification of such theories through examples like the Hopf fibration.

Simon-Raphael Fischer2026-08-25