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

Correlation-induced suppression of Granger causality and Gaussian transfer entropy

This paper demonstrates that Granger causality and Gaussian transfer entropy are substantially suppressed by correlations between variables in dynamical systems, quantifying this attenuation through a new framework that links predictive measures to operator-based causality and validates the findings across linear, nonlinear, and real-world fMRI data.

Louis Cattafesta, Scott T. M. Dawson, Ankit Srivastava2026-10-26
🌀 nonlinear sciences

Commuting Families of Flag Quasideterminants in Reflection Equation Algebras of Type A

This paper proves the conjecture that northeastern antidiagonal quasideterminants associated with successive blocks of the generating matrix in a reflection equation algebra of type An−1A_{n-1} form a commuting family, utilizing a triangular realization and the flag property of quasideterminants while also exploring their connections to quantum cluster coordinates and generalized Toda systems.

Dmitry V. Talalaev2026-10-26
🔢 mathematics

The solution of the Hopfield model with Gaussian patterns

This paper rigorously proves the existence of the thermodynamic limit for the free energy of the Hopfield model with Gaussian patterns at all loads and temperatures, deriving an explicit variational principle that resolves the replica-symmetric Amit-Gutfreund-Sompolinsky theory, identifies the annealed region boundary, and demonstrates that replica symmetry is broken below the critical temperature Tg=1+αT_g = 1 + \sqrt{\alpha}.

Francesco Camilli, Pierluigi Contucci, Emanuele Mingione2026-10-26
🔢 mathematics

Averages of traces and ratios of characteristic polynomials of random unitary matrices

This paper utilizes the Ratios Theorem for random unitary matrices to derive concrete expressions for averages of up to four traces and general trace moments extending beyond the Diaconis–Shahshahani range, enabling applications such as identifying parameter ranges where these averages become negative.

Ada Bendel, Rhys Cahill, John Brian Conrey, Gregor Harrison Barraclough, Ayesha Irfan, Nina Claire Snaith, Leonid Tyulen (…)2026-10-26
🔢 mathematics

Quasideterminants and differential realizations of W-algebras

This paper establishes that the Hamiltonian reduction of the big-cell differential realization of glnp\mathfrak{gl}_{np} yields an intrinsic factorization where corner quasideterminants facilitate the transformation into a coproduct action of nn evaluation differential realizations of glp\mathfrak{gl}_p, thereby linking higher-rank differential realizations to lower-rank Yangian actions.

Sergey Derkachov, Daniil Getta2026-10-26
🔢 mathematics

Strongly non-linear continuous model for wave propagation in 2D granular media: derivation and hyperbolicity analysis

This paper derives a strongly non-linear, strain-gradient continuum model for wave propagation in two-dimensional granular media based on the Hertzian contact law, analyzes its hyperbolicity, and validates its predictions against discrete-element simulations for phenomena such as gravitational settling and depth-dependent wave speeds.

Sebastiano Cominelli, Régis Cottereau, Sergey Gavrilyuk, Bruno Lombard, Fabien Petitpas2026-10-26
🔢 mathematics

Ricci flow of Integrable Sigma Models, Hitchin Systems and Quantum Seiberg-Witten theory

This paper constructs integrable 2d sigma models via 4d Chern-Simons theory to establish a correspondence with Hitchin systems, demonstrating that their quantized dynamics align with the Perelman operator and enabling the derivation of exact quantization conditions for the sausage model through 4d N=2\mathcal{N}=2 gauge theory and 2d CFT methods.

G. Bonelli, S. Lacroix, T. Pedroni, A. Tanzini2026-10-23