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

The Euclidean ϕ24\phi^4_2 theory as a limit of an inhomogeneous Bose gas

This paper proves that the grand canonical Gibbs state of an inhomogeneous two-dimensional interacting Bose gas converges to the renormalized Euclidean ϕ24\phi^4_2 field theory in the high-density, short-range interaction limit, overcoming significant mathematical challenges posed by the need for divergent counterterm functions rather than simple scalars due to the presence of a trapping potential.

Cristina Caraci, Antti Knowles, Alessio Ranallo, Pedro Torres Giesteira2026-03-13
⚛️ general relativity

Quiescent Big Bang formation in 2+12+1 dimensions

This paper proves that (2+1)(2+1)-dimensional solutions to the Einstein scalar-field Vlasov system, initially close to FLRW spacetimes on closed surfaces of arbitrary genus, exhibit stable Big Bang singularities with quiescent, velocity-term-dominated asymptotics and C2C^2-inextendibility, thereby establishing the Strong Cosmic Censorship conjecture for a corresponding class of polarized U(1)U(1)-symmetric vacuum solutions.

Liam Urban2026-03-12