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.

Nambu Non-equilibrium Thermodynamics: Axiomatic Formulation and Foundation

This paper introduces Nambu Non-equilibrium Thermodynamics (NNET), a covariant theoretical framework that unifies reversible Nambu bracket dynamics and irreversible entropy-driven processes to describe systems far from equilibrium, as demonstrated by its application to a triangular chemical reaction system where geometric conserved quantities emerge without assuming detailed balance or linearity.

So Katagiri, Yoshiki Matsuoka, Akio Sugamoto2026-04-08🔢 math-ph

DD-Dimensional Modular Assembly of Higher-Derivative Four-Point Contact Amplitudes Involving Fermions

This paper introduces a robust, DD-dimensional modular framework that systematically constructs higher-derivative four-point contact amplitudes involving fermions by combining gauge-invariant kinematic blocks with permutation-invariant polynomials, thereby ensuring manifest compatibility with the double-copy program and facilitating the generation of operator towers for gauge and gravity theories.

John Joseph M. Carrasco, Sai Sasank Chava, Alex Edison, Aslan Seifi2026-04-08⚛️ hep-ph

Bootstrapping Euclidean Two-point Correlators

This paper introduces a rigorous semidefinite programming framework to bound Euclidean two-point correlators in quantum mechanical systems by enforcing reflection positivity, equations of motion, and thermal or ground-state constraints, successfully applying the method to extract spectral data from one-matrix quantum mechanics while linking high-temperature correlator bounds to matrix integral bootstraps.

Minjae Cho, Barak Gabai, Henry W. Lin, Jessica Yeh, Zechuan Zheng2026-04-08⚛️ hep-th

Dynamical Tidal Response of Non-rotating Black Holes: Connecting the MST Formalism and Worldline EFT

This paper establishes a connection between the Mano-Suzuki-Takasugi formalism and worldline effective field theory to analyze the dynamical tidal response of non-rotating black holes in general relativity, revealing that renormalized tidal response functions and resulting Love numbers are inherently scheme-dependent and sensitive to initial renormalization conditions.

Hajime Kobayashi, Shinji Mukohyama, Naritaka Oshita, Kazufumi Takahashi, Vicharit Yingcharoenrat2026-04-08⚛️ gr-qc