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

On Uniform Functions on Configuration Spaces of Large Scale Interacting Systems

This paper advances the theory of uniform functions on configuration spaces of large-scale interacting systems by establishing a base-state-independent framework and proving that global conserved quantities arising from exchangeable interactions can be decomposed into local conserved quantities, all without requiring assumptions of irreducibility or stationary distributions.

Kenichi Bannai, Makiko Sasada2026-08-06
🔢 mathematics

Subsystems (in)dependence in GIE proposals

This paper utilizes algebraic quantum field theory to demonstrate that gauge constraints and gravitational dressing in gravitationally induced entanglement (GIE) proposals undermine strict subsystem independence and microcausality, thereby complicating the interpretation of entanglement witnesses while suggesting that bounding these dressing-induced violations could serve as a novel probe for the quantum nature of gravity.

Nicolas Boulle, Guilherme Franzmann2026-08-06
🔬 condensed matter

Breakdown of Monotonic Impurity Entropy Flow in PT\mathscr{PT}-Symmetric Multichannel Kondo Systems

This paper employs exact Bethe Ansatz and thermodynamic Bethe Ansatz methods to study a PT\mathscr{PT}-symmetric non-Hermitian multichannel Kondo model, revealing four distinct impurity phases and demonstrating that while the Kondo phase obeys a generalized gg-theorem, the zero-mode and local-moment phases exhibit non-monotonic impurity entropy flow that violates RG irreversibility despite maintaining a real spectrum and CFT-consistent defect entropies.

Pradip Kattel, Abay Zhakenov, Natan Andrei2026-08-06
🔢 mathematics

A phase field model of coupled crack and dislocations: emission, blunting, and the necessity of dissipative toughening

This paper proposes a phase field model derived from a single energy functional that unifies crack propagation and dislocation dynamics in single crystals, demonstrating that while dislocation emission shields cracks energetically, true material toughening fundamentally requires the incorporation of dissipative mechanisms to resist dislocation motion.

Khanh Chau Le, Thi My Kieu Tran2026-08-06
🔢 mathematics

Multi-frequency far-field data enrichment for electromagnetic source reconstruction

This paper proposes a two-stage reconstruction framework that leverages the finite rate of innovations property of sparse electromagnetic sources to enrich under-sampled multi-frequency far-field data via low-rank Hankel matrix completion, thereby enabling accurate and stable source recovery even with high sub-sampling rates and strong noise where standard methods fail.

Atyab Khalifa Al-Shaqsi, Heba Mohammed Al-Subhi, Xianchao Wang, Shujaat Khan, Abdul Wahab2026-08-06
🔢 mathematics

Qualitative analysis, chaotic structure and exact solution of the nonlinear seventh-order Caudrey-Dodd-Gibbon-KP equation

This paper investigates the (2+1)-dimensional seventh-order Caudrey-Dodd-Gibbon-KP equation by deriving exact bright and anti-kink soliton solutions via the (GG+G+A)(\frac{G'}{G'+G+A}) method and analyzing its complex dynamical behaviors, including chaos and bifurcation, through comprehensive phase portrait and stability analyses.

S. S. Samanta, S. Sahoo, Vijil Kumar, Rajib Mia2026-08-06