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

McMg: A Learned Phase-Space Multi-channel Multigrid Preconditioner for Helmholtz Equation

This paper introduces McMg, a learned phase-space multigrid preconditioner that encodes local wave information (amplitude, phase, direction, and scattering) into coarse-grid channels to efficiently solve high-frequency, heterogeneous Helmholtz equations with superior convergence and generalization compared to classical and existing neural baselines.

Jiwei Jia, Xinliang Liu, Juntao Wang, Jinchao Xu2026-06-30
⚛️ high-energy theory

Poisson bracket and LL_\infty algebras

This paper establishes a connection between the Poisson bracket of Lagrangian field theory and LL_\infty algebras by demonstrating that a proposed symplectic structure yields the Peierls formula, interpreting the inverse relation between these structures via homological algebra, and applying these concepts to the complexities of pp-adic string theory.

Vinícius Bernardes, Theodore Erler, Atakan Hilmi Fırat, Igor Khavkine2026-06-30
🔢 mathematics

Consistent Canonical Quantization of Gravity: Recovery of Classical GR from BRST-invariant Coherent States

This paper presents a consistent canonical quantization of General Relativity within a BRST-invariant framework around the Minkowski vacuum, demonstrating that classical spacetime geometries emerge as coherent states where the vanishing Hamiltonian constraint is realized as an expectation value, thereby enabling non-trivial time evolution for correlation functions and providing motivation for spontaneously broken supersymmetry.

Lasha Berezhiani, Gia Dvali, Otari Sakhelashvili2026-06-29
🔢 mathematics

Hybrid coupling with operator inference and the overlapping Schwarz alternating method

This paper introduces a novel hybrid coupling framework that integrates non-intrusive Operator Inference reduced order models and high-fidelity full order models using the overlapping Schwarz alternating method, achieving up to 106x speedups in complex 3D solid dynamics simulations while maintaining high accuracy.

Irina Tezaur, Eric Parish, Anthony Gruber, Ian Moore, Christopher Wentland, Alejandro Mota2026-06-29
🔢 mathematics

Quantum Mechanics on Lie Groups: I. Noncommutative Fourier Transforms

This paper establishes an invertible, isometric noncommutative Fourier transform for square-integrable wave functions on Lie groups that maps position space to a dual momentum space with noncommuting momenta, addressing normalization challenges from compact subgroups to derive a noncommutative Poisson summation formula essential for computing Wigner functions and path integrals.

Mathieu Beauvillain, Blagoje Oblak, Marios Petropoulos2026-06-29