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

RG-Flow Renormalized One-Loop Corrections to the Power Spectrum in USR Inflation

This paper employs a combined UV-IR regularization and renormalization group flow formalism to demonstrate that one-loop corrections to the curvature perturbation power spectrum in ultra-slow-roll inflation scale exponentially with the duration of the USR phase, potentially becoming non-perturbatively large and challenging the validity of perturbative frameworks for primordial black hole formation.

Haidar Sheikhahmadi, Amin Nassiri-Rad2026-07-07
⚛️ high-energy theory

O(16)×\timesO(16) heterotic theory on AdS3×S3×T4AdS_3\times S^3\times T^4

This paper investigates non-supersymmetric AdS3×S3AdS_3 \times S^3 vacua in O(16)×O(16)O(16) \times O(16) heterotic theory on a T4T^4 background, demonstrating that while one-loop corrections positively shift the cosmological constant, they fail to produce a de Sitter uplift, yet the resulting vacua remain stable as all fluctuation modes satisfy the Breitenlohner-Freedman bound.

Daniel Robbins, Hassaan Saleem2026-07-07