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

Spinors, Doppelgängers and the Non-Perturbative Classical Double Copy

This paper establishes a non-perturbative classical double copy between complexified SU(2) Yang-Mills theory and four-dimensional conformally flat gravity by identifying the gauge potential with the chiral spin connection, thereby unifying gauge and gravitational fields through a "doppelgänger" framework that maps field strengths to curvature components even in the presence of constant scalar curvature and matter sources.

Kymani Armstrong-Williams2026-10-19
🔢 mathematics

On the relationship between the POVM framework and the no-signaling hypothesis

This paper demonstrates that the no-signaling hypothesis, when combined with standard representations of composite experiments and basic marginal probability rules, is logically equivalent to the universality of the POVM framework, thereby deriving a significant portion of non-relativistic quantum mechanics' probability structure from the principle that isolated systems cannot signal each other.

Will Cavendish2026-10-19
⚛️ quantum physics

Multi-Time States in Quantum and Operational Probabilistic Theories: An Axiomatic Framework

This paper establishes a general axiomatic framework for multi-time states within operational probabilistic theories that accommodates both Markovian and non-Markovian dynamics, enabling the characterization of temporal memory, causal inference, and Bayesian retrodiction across quantum mechanics and generalized theories like boxworld.

Kaumudibikash Goswami, Archana Barvar, Manabendra Nath Bera2026-10-19
🔢 mathematics

Construction of Gross-Neveu model using Polchinski flow equation

This paper presents a novel, non-perturbative construction of the Gross-Neveu model by formulating the Polchinski flow equation as a well-posed infinite-dimensional partial differential equation on a Banach space and solving it via a fixed point argument, thereby rigorously establishing the convergence of Schwinger functions and the existence of an interacting random field without relying on expansion-based techniques.

Paweł Duch2026-10-16
🔢 mathematics

Stratification of opers with apparent singularities and isomonodromic bubbling

This paper investigates Simpson's stratification of the de Rham moduli space of rank-2 flat connections on a compact Riemann surface by constructing explicit holomorphic families where colliding apparent singularities realize the closure relation between strata via isomonodromic bubbling surgery, with corresponding descriptions provided for Higgs bundles using Baker–Akhiezer divisors.

Duong Dinh, Troy Figiel, Joerg Teschner2026-10-16