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

Solutions for neutron stars in General Relativity from a complexity structure scalar boundary condition

This paper proposes a new model for spherically symmetric anisotropic neutron stars in General Relativity by introducing a non-zero, positive minimum complexity factor at the stellar boundary, demonstrating that the vanishing complexity condition is not applicable to compact objects in the strong-gravity regime.

Robert S. Bogadi, Megandhren Govender, Genly Leon, Andronikos Paliathanasis2026-09-04
🔢 mathematics

Exact Scaling Laws and Non-Hermitian Topological Phase Transitions of Active Continuum on Hyperbolic Manifolds

This paper establishes an exact algebraic framework for active continua on hyperbolic manifolds that derives precise critical thresholds for macroscopic polarization, identifies a BPS limit enabling velocity field reduction via Möbius symmetry, and reveals a non-Hermitian second-order exceptional point with a specific algebraic scaling law, thereby providing a closed-form solution for geometric frustration and topological phase transitions in soft mechanics.

Yu-Xin Xie2026-09-04
🔢 mathematics

An Effective SPDE Model for a Schrödinger Equation with a Fluctuating Magnetic Potential

This paper establishes a singular perturbation limit for the Schrödinger equation in a randomly fluctuating magnetic field, demonstrating that the solution converges to a deterministic equation with Gaussian fluctuations and proposing a simplified stochastic model that captures both the average behavior and fluctuations to facilitate the study of observable distributions.

Franco Flandoli, Reika Fukuizumi, Francesco Grotto, Eliseo Luongo2026-09-04
⚛️ general relativity

An off-shell conformally invariant Galilean Weyl tensor

This paper proposes a manifestly conformally invariant off-shell definition of the Galilean Weyl tensor and its electric and magnetic parts, arguing that the vanishing of the magnetic part via specific observers should be a necessary condition for a theory to be termed "Newtonian," while also demonstrating that a unique Galilean boost-invariant connection can be constructed without a mass gauge field.

Quentin Vigneron, Philip K. Schwartz, James Read2026-09-04