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

Topology optimization of type-II superconductors with superconductor-dielectric/vacuum interfaces based on Ginzburg-Landau theory under Weyl gauge

This paper presents a topology optimization framework based on time-dependent Ginzburg-Landau theory under the Weyl gauge to inversely design the structural geometries of type-II superconductors with superconductor-dielectric/vacuum interfaces, aiming to enhance flux pinning and current density through optimal defect placement.

Yongbo Deng, Jan G. Korvink2026-03-02
🔢 mathematics

Simultaneous symplectic spectral decomposition of positive semidefinite matrices

This paper establishes necessary and sufficient conditions for the simultaneous symplectic spectral decomposition of a family of real positive semidefinite matrices with symplectic kernels and provides a precise algebraic condition for the orthosymplectic spectral diagonalization of a single such matrix, thereby generalizing existing results for positive definite matrices.

Rudra R. Kamat, Hemant K. Mishra2026-02-27
🌀 nonlinear sciences

Low Regularity of Self-Similar Solutions of Two-Dimensional Riemann problems with Shocks for the Isentropic Euler system

This paper establishes a general framework demonstrating that self-similar solutions to two-dimensional Riemann problems for the isentropic Euler system with shocks generally exhibit low regularity, specifically that the velocity field fails to belong to H1H^1 and may be discontinuous in the subsonic domain, thereby revealing a significantly more complex structure than solutions for potential flow.

Gui-Qiang G. Chen, Mikhail Feldman, Wei Xiang2026-02-27
🔢 mathematics

Critical point search and linear response theory for computing electronic excitation energies of molecular systems. Part I: General framework, application to Hartree-Fock and DFT

This paper presents a unified Kähler manifold framework that systematically derives linear response equations for computing electronic excitation energies across various variational models, offering a streamlined alternative to traditional methods like Casida's derivation for Hartree-Fock and DFT.

Laura Grazioli, Yukuan Hu, Eric Cancès2026-02-27
🌀 nonlinear sciences

Discrete equations from Bäcklund transformations of the fifth Painlevé equation

This paper derives discrete equations, including a new one with ternary symmetry, from Bäcklund transformations of the fifth Painlevé equation and constructs hierarchies of their rational solutions using generalized Laguerre and Umemura polynomials, while also demonstrating how nonunique rational solutions of the original equation yield distinct solution hierarchies for the same discrete equation.

Peter A. Clarkson, Clare Dunning, Ben Mitchell2026-02-27