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.

Existence of Solutions for time-dependent fractional Kohn-Sham Equations

This paper establishes the local existence of weak solutions for time-dependent fractional Kohn-Sham equations in three dimensions with energy subcritical non-linearities, proves their global extension under specific energy control conditions, and demonstrates well-posedness for the case where the fractional parameter ss lies in [1,32)[1, \frac{3}{2}) using Strichartz estimates.

Sébastien Breteaux, Michele Fantechi, Jérémy Faupin2026-06-02🔢 math-ph

Quasi-bound States of Scalar field inside the Dyonic Kerr-Sen Black Hole

This paper derives exact analytic quasi-stationary states for a massive scalar field in a dyonic Kerr-Sen black hole background using horizon-regular coordinates, revealing a quantized spectrum where positive-energy modes grow exponentially to destabilize the chronology-violating inner region, thereby supporting Hawking's chronology protection conjecture.

David Senjaya, Tinnagrit Songkeaw, Piyabut Burikham2026-06-02⚛️ hep-th

Painlevé XXXIV Asymptotics for the Focusing mKdV Equation with Finite-Genus Background and Discrete Spectrum

This paper establishes the long-time asymptotics for the focusing modified Korteweg-de Vries equation with finite-genus quasi-periodic initial data and discrete spectrum in a critical regime where stationary phase points coalesce with branch cut endpoints, revealing that the solution is uniformly approximated by a modulated algebro-geometric background and breathers governed by a Painlevé XXXIV parametrix.

Ruihong Ma, Engui Fan2026-06-02🔢 math-ph

Higher-Rank Orthogonal Twists, APS Boundary Conditions, and O(2)O(2)-Equivariant Spectral Flow on a Warped Cylinder

This paper derives an explicit blockwise formula for the $RO(O(2))$-valued spectral flow of Dirac operators on a finite warped cylinder with higher-rank orthogonal twists and APS boundary conditions, demonstrating how representation-theoretic information is preserved beyond standard integer-valued spectral flow through the decomposition of moving and stationary blocks under reflection symmetry.

Taro Kimura, Sanchita Sharma2026-06-02🔢 math-ph

A Cohesive \infty-Topos with a Quantum Modality from Finite-Dimensional CC^{*}-Algebras

This paper constructs a cohesive \infty-topos equipped with a quantum modality derived from finite-dimensional CC^{*}-algebras, providing the first rigorous model for cohesive linear homotopy type theory that interprets decoherence, yields a non-degenerate affine model of multiplicative intuitionistic linear logic, and establishes a synthetic no-cloning theorem.

Joey Woo2026-06-02🔢 math-ph

Hidden u(2,1)\mathfrak{u}(2,1) symmetry and Jordan chains in a resonant ghostly three-dimensional model

This paper investigates a resonant three-dimensional ghostly Hamiltonian model of the Pais-Uhlenbeck oscillator, revealing a hidden u(2,1)\mathfrak{u}(2,1) symmetry that governs its non-diagonalisable Jordan chain structure, tri-Hamiltonian geometry, and the absence of a positive-definite Hamiltonian despite the existence of higher-order symmetries.

Andreas Fring, Ian Marquette2026-06-02🔢 math-ph