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.

⚛️ quantum physics

Information diagrams in the study of entanglement in symmetric multi-quDit systems and applications to quantum phase transitions in Lipkin-Meshkov-Glick D-level atom models

This paper employs information diagrams and generalized U(D) coherent states to analyze entanglement in symmetric multi-quDit systems, proposing the rank of reduced density matrices as a discrete order parameter to characterize quantum phase transitions in Lipkin-Meshkov-Glick models of D-level atoms.

Julio Guerrero, Alberto Mayorgas, Manuel Calixto2026-02-06
⚛️ nuclear theory

Localization measures of parity adapted U(DD)-spin coherent states applied to the phase space analysis of the DD-level Lipkin-Meshkov-Glick model

This paper investigates the phase-space properties of parity-adapted U(DD)-spin coherent states to analyze quantum phase transitions in NN-quDit systems, demonstrating that their Husimi functions, moments, and Wehrl entropy serve as effective localization measures for visualizing critical precursors in the DD-level Lipkin-Meshkov-Glick model.

Alberto Mayorgas, Julio Guerrero, Manuel Calixto2026-02-06
🔢 mathematics

Lieb-Mattis ordering theorem of electronic energy levels in the thermodynamic limit

This paper generalizes the Lieb-Mattis ordering theorem to fermionic mixtures with N>2N>2 spinor components in the thermodynamic limit, demonstrating that the lowest-energy states within each permutation symmetry sector are well-approximated by U(N)(N) coherent states and exhibit distinct quantum phase transitions dependent on their symmetry sectors.

Manuel Calixto, Alberto Mayorgas, Julio Guerrero2026-02-06
🔢 mathematics

Nonlinear Schrödinger Equation with magnetic potential on metric graphs

This paper investigates the existence of ground states for the Nonlinear Magnetic Schrödinger Equation on noncompact metric graphs by proving that the magnetic Hamiltonian is variationally equivalent to a non-magnetic operator with repulsive potentials determined by Aharonov-Bohm flux, a reduction that extends classical existence criteria and reveals a mass-dependent phase transition on the tadpole graph where strong flux can prevent ground state formation.

Nicolò Cangiotti, Ivan Gallo, David Spitzkopf2026-02-06
🌀 nonlinear sciences

Painlevé Universality classes for the maximal amplitude solution of the Focusing Nonlinear Schrödinger Equation with randomness

This paper establishes that the maximal amplitude solutions of the focusing nonlinear Schrödinger equation with randomly distributed eigenvalues converge to deterministic profiles governed by either the Painlevé-III or Painlevé-V equations, demonstrating that the formation of such rogue waves is a universal phenomenon robust to randomness.

Aikaterini Gkogkou, Guido Mazzuca, Kenneth D. T-R McLaughlin2026-02-06
🔢 mathematics

The resurgence of errors in the localization of N=2\mathcal{N} = 2 superconformal Yang-Mills

This paper provides a physical interpretation for the analytic continuation of the N=2\mathcal{N}=2 superconformal SU(2)(2) gauge theory partition function on the four-sphere by demonstrating that its singularities arise from two-dimensional unstable instantons associated with 4d complex saddles, a result derived from the chiral algebra subsector and consistent with Higgs branch localization.

Inês Aniceto, James Ratcliffe, Itamar Yaakov2026-02-06