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.

Quivers and BPS states in 3d and 4d

This paper proposes and rigorously establishes a symmetrization relation between 4d N=2\mathcal{N}=2 BPS quivers and 3d N=2\mathcal{N}=2 symmetric quivers, demonstrating that the wall-crossing structure of 4d Argyres-Douglas theories is isomorphic to the unlinking of their 3d counterparts and that these symmetric quivers successfully capture the Schur indices of the original 4d theories.

Piotr Kucharski, Pietro Longhi, Dmitry Noshchenko, Sunghyuk Park, Piotr Sułkowski2026-03-06🔬 physics

SO(n) Affleck-Kennedy-Lieb-Tasaki states as conformal boundary states of integrable SU(n) spin chains

This paper constructs SO(n)\mathrm{SO}(n)-symmetric conformal boundary states in the SU(n)1\mathrm{SU}(n)_1 Wess-Zumino-Witten conformal field theory by embedding Spin(n)2\mathrm{Spin}(n)_2, identifies them as ground states of SO(n)\mathrm{SO}(n) Affleck-Kennedy-Lieb-Tasaki spin chains within the integrable SU(n)\mathrm{SU}(n) Uimin-Lai-Sutherland model, and analytically computes their boundary entropy using exact overlap formulas.

Yueshui Zhang, Ying-Hai Wu, Meng Cheng, Hong-Hao Tu2026-03-06⚛️ quant-ph

Comparison of Structure-Preserving Methods for the Cahn-Hilliard-Navier-Stokes Equations

This paper introduces and validates two new structure-preserving discontinuous Galerkin methods, SWIPD-L and SIPGD-L, for the Cahn-Hilliard-Navier-Stokes equations with degenerate mobility, demonstrating that they achieve optimal convergence, preserve key physical properties like mass conservation and energy dissipation, and offer significant computational savings on adaptive meshes compared to existing approaches.

Jimmy Kornelije Gunnarsson, Robert Klöfkorn2026-03-06🔬 physics

Tight inapproximability of max-LINSAT and implications for decoded quantum interferometry

This paper proves that max-LINSAT is tightly inapproximable within any constant factor beyond the random-assignment ratio r/qr/q under PNP\mathsf{P} \neq \mathsf{NP}, a hardness threshold that coincides with the asymptotic performance limit of decoded quantum interferometry, thereby delineating the boundary between classical worst-case hardness and potential quantum advantage.

Maximilian J. Kramer, Carsten Schubert, Jens Eisert2026-03-06⚛️ quant-ph

Causal Fermion Systems, Non-Commutative Geometry and Generalized Trace Dynamics

This paper compares causal fermion systems, non-commutative geometry, and generalized trace dynamics, highlighting their shared recovery of fiber bundle structures in the continuum limit and identifying the encoding of spacetime relations via a generalized two-point correlator—replacing Synge's world function—as the key innovation that can be unified across all three frameworks.

Felix Finster, Shane Farnsworth, Claudio F. Paganini, Tejinder P. Singh2026-03-06🔬 physics