Hep-Th, or high-energy theoretical physics, explores the fundamental building blocks of our universe and the forces that govern them. Researchers in this field use complex mathematics to understand everything from subatomic particles to the behavior of black holes, often pushing the boundaries of what we know about space and time.

At Gist.Science, we monitor the arXiv repository to ensure you stay ahead of the curve in this rapidly evolving discipline. For every new preprint uploaded to arXiv under this category, our team generates both accessible plain-language overviews and detailed technical summaries, making cutting-edge research understandable regardless of your background.

Below are the latest papers in high-energy theoretical physics, curated to help you navigate the most significant recent discoveries.

⚛️ general relativity

Correlated parity violation in gravity and electromagnetism from five-dimensional spacetime

This paper proposes a five-dimensional Kaluza-Klein framework in teleparallel geometry that unifies gravitational and electromagnetic parity violation into two ghost-free terms, predicting a background-independent relation where the helicity-dependent dispersion shift for electromagnetic waves is exactly six times that of gravitational waves.

Haomin Rao, Yunlong Zheng, Qi-Zhe Hou, Jian-Wen Ou, Changyong Zhu2026-08-11
⚛️ lattice

Effects of Born-Infeld Electrodynamics on Chiral Symmetry Restoration and Meson Susceptibilities in Holographic QCD

This paper numerically investigates chiral symmetry restoration in holographic QCD using a Born-Infeld black hole background, revealing that while the nonlinear electrodynamics parameter stabilizes the chirally broken phase and shifts transition temperatures, it does not alter the transition order or generate a critical endpoint within the studied range.

Hiwa A. Ahmed, Peshwaz A. Abdoul2026-08-11
⚛️ high-energy theory

Nonperturbative Stabilization of D-Instantons in the Bosonic IIB Matrix Model

This paper demonstrates that the notorious collapse of D-instanton positions in the bosonic IIB matrix model, which appears at the one-loop level, is actually an artifact of perturbation theory that is resolved nonperturbatively by a finite, repulsive two-body interaction in the exact U(2)\mathrm{U}(2) sector, thereby stabilizing the D-instantons at a finite separation.

Yu-An Chen, Hikaru Kawai, Henry Liao, Cheng-Tsung Wang2026-08-11
⚛️ phenomenology

Schwinger-Keldysh effective field theory of type-B Goldstone: near-diagonal geometry and Berry term

This paper formulates a finite-temperature Schwinger-Keldysh effective field theory for type-B Goldstone modes by employing a near-diagonal geometric framework that identifies the Berry term via transgression and ensures compatibility with the dynamical KMS condition, ultimately deriving dispersion relations and correlation functions for dissipative systems through the classification of tensors on the coset manifold.

Pei Zheng, Mei Huang2026-08-11