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.

⚛️ high-energy theory

From single-particle to many-body chaos in Yukawa--SYK: theory and a cavity-QED proposal

This paper introduces the Yukawa--SYK model as a unifying framework that bridges single-particle and many-body chaos through tunable interaction strengths, characterizes its intermediate dynamical regimes, and proposes a feasible optical-cavity implementation using ultra-cold atoms for experimental observation.

David Pascual Solis, Alex Windey, Soumik Bandyopadhyay, Andrea Legramandi, Philipp Hauke2026-03-23
⚛️ high-energy theory

The Cosmological Constant and Dark Dimensions from Non-Supersymmetric Strings

This paper presents a non-supersymmetric string theory construction where particle physics contributions to the vacuum energy cancel via hidden sector branes and gravitational effects are suppressed by large extra dimensions, thereby realizing the Dark Dimension scenario with a stabilized de Sitter vacuum and an exponentially small cosmological constant.

Emilian Dudas, Susha Parameswaran, Marco Serra2026-03-23
⚛️ general relativity

Modified Teleparallel f(T)f(T) Gravity, DESI BAO and the H0H_0 Tension

This paper investigates three late-time f(T)f(T) gravity models using DESI BAO and other cosmological data to determine if torsional modifications can alleviate the H0H_0 tension, finding that while phantom-like regimes can partially shift the Hubble constant toward local measurements, none of the models are statistically preferred over the standard Λ\LambdaCDM model.

Mariam Bouhmadi-López, Carlos G. Boiza, Maria Petronikolou, Emmanuel N. Saridakis2026-03-23
⚛️ general relativity

Recursive Penrose processes in electrically charged black hole spacetimes: Backreaction and energy extraction

This paper demonstrates that in Reissner-Nordström-AdS spacetimes, a recursive Penrose process involving charged particle decays and natural confinement yields a finite energy extraction while the black hole's backreaction ensures the process terminates before violating cosmic censorship or triggering a black hole bomb.

Duarte Feiteira, José P. S. Lemos, Oleg B. Zaslavskii2026-03-23
🔭 astrophysics

Survival of the most compact: the life and death of satellite halos in self-interacting dark matter

This paper introduces a cost-efficient simulation framework that models scattering-induced interactions between satellite subhalos and their host halos in self-interacting dark matter scenarios, revealing that environmental effects drive significant structural diversity in subhalo density profiles with observable implications for gravitational lensing and satellite galaxies.

David Klemmer, Moritz S. Fischer, Kimberly K. Boddy, Manoj Kaplinghat, Laura Sagunski2026-03-23