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.

⚛️ phenomenology

Dynamical generation of fermion mass in a scalar-fermion theory with λϕ4λϕ^4 interaction

Using the Cornwall-Jackiw-Tomboulis method, this paper demonstrates that in a scalar-fermion theory with λϕ4\lambda\phi^4 interaction, dynamical fermion mass generation and spontaneous inversion symmetry breaking occur only when the coupling constant exceeds a specific threshold, whereas the system remains in a symmetric, massless state below this threshold.

Somnath Majumder, Krishnendu Mukherjee2026-08-11
⚛️ general relativity

Interior geometry of black holes as a probe of first-order phase transition

This paper proposes that the near-singularity geometry of scalarized AdS black holes, specifically the behavior of the Kasner exponent ptp_t, serves as a novel and sharp diagnostic tool for identifying first-order phase transitions and supercritical crossovers, revealing how macroscopic thermodynamic changes fundamentally reshape the deepest interior structure of spacetime.

Zi-Qiang Zhao, Zhang-Yu Nie, Shao-Wen Wei, Jing-Fei Zhang, Xin Zhang2026-08-11
🌀 nonlinear sciences

Topological spectral form factor reveals emergent non-Hermitian single-particle PT\mathcal{PT} transitions from many-body quantum chaos

This paper introduces the topological spectral form factor (TopSFF) as a probe for many-body quantum chaos, demonstrating that its behavior maps to an emergent non-Hermitian single-particle problem where a PT\mathcal{PT} symmetry breaking transition at a critical interaction strength induces distinct dynamical phases characterized by monotonic decay, oscillations, or linear enhancement at the exceptional point.

Daniel Harkin, Chun Y. Leung, Amos Chan2026-08-11
⚛️ high-energy theory

Composite Fields and Tree Expansions: A Unified Framework for Renormalized Vertex Decompositions

This paper introduces a unified functional framework based on Legendre transforms of composite fields that algebraically reorganizes one-particle irreducible vertices into efficient building blocks, revealing established decompositions as specific realizations of a common structure and enabling systematic tree expansions for higher-order vertices across diverse quantum field theories.

Oleksandr Sulyma, Benedikt Schneider2026-08-11
⚛️ high-energy theory

Cosmic birefringence from a joint analysis of ACT and Planck

This paper presents a joint analysis of ACT and Planck polarization data that reveals a statistically significant non-zero cosmic birefringence angle (β=0.277±0.057\beta = 0.277^{\circ} \pm 0.057^{\circ}), suggesting potential new physics beyond the standard Λ\LambdaCDM model, although unresolved systematics warrant further investigation before definitive cosmological conclusions can be drawn.

Johannes R. Eskilt2026-08-11