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.

Twisted representations of conformal nets and crossed balanced tensor categories

This paper establishes that the category of GG-twisted representations of a conformal net A\mathcal{A} with a discrete group action GG naturally forms a GG-crossed balanced W\mathrm{W}^*-tensor category, thereby extending Müger's earlier results on GG-crossed braided tensor categories to the setting of not necessarily rational nets using localized endomorphisms.

Adrià Marín-Salvador2026-06-03🔢 math-ph

Triple exceptional point with unitary paths of unfolding in a three-site fermionic Swanson-like model

This paper presents an exactly solvable five-parametric fermionic three-site Swanson-like model that elucidates the unitary evolution toward a triple exceptional point (EP3), explicitly characterizing the degeneracy and its unitary-accessible vicinity while distinguishing the true singularity from a nearby avoided false energy-level crossing.

Bijan Bagchi, Aritra Ghosh, Miloslav Znojil2026-06-03🔢 math-ph

Positive resolution of Bartnik's cosmological splitting conjecture

This paper proves Robert Bartnik's 1988 cosmological splitting conjecture by demonstrating that a timelike geodesically complete, globally hyperbolic spacetime with compact Cauchy surfaces satisfying the strong energy condition must split isometrically as a Lorentzian product, utilizing global viscosity solutions to the Lorentzian eikonal equation and an elliptic approach involving the pp-d'Alembertian operator for p<1p < 1.

Robert J. McCann, Argam Ohanyan2026-06-03⚛️ gr-qc

Approach to optimal quantum transport via states over time

This paper proposes a novel framework for quantum optimal transport by defining transport costs as linear functions of "states over time" (the Jordan product of a density matrix and a transport map), revealing that this approach yields qualitatively different results from classical Monge transport theory, particularly in the analytically tractable case of unitary-invariant costs.

Matt Hoogsteder-Riera, John Calsamiglia, Andreas Winter2026-06-02🔢 math-ph

Ground State Excitations and Energy Fluctuations in Short-Range Spin Glasses

This paper demonstrates that in the Edwards-Anderson Ising spin glass, the non-existence of space-filling critical droplets implies that incongruent ground states would exhibit volume-scaling energy variance, a result which proves the uniqueness of the metastate in two dimensions and establishes that excitations with positive-density interfaces have energy differences diverging as the square root of the volume.

C. M. Newman, D. L. Stein2026-06-02🔢 math-ph