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.

Probing the bubble interior with entanglement entropy and bulk-cone singularities

This paper investigates the causal structure and interior geometry of asymptotically AdS black holes containing vacuum bubbles by analyzing holographic entanglement entropy and bulk-cone singularities, revealing that while collapsing and expanding bubbles exhibit thermalization, static bubbles display non-thermal "scar state" properties.

Roberto Auzzi, Stefano Baiguera, Lihan Guo, Giuseppe Nardelli, Nicolò Zenoni2026-03-05🔬 physics

Quantum Corrections to η/sη/s from JT Gravity

This paper demonstrates that incorporating quantum fluctuations via Jackiw-Teitelboim (JT) gravity in a holographic model of near-extremal black branes generates a non-universal, temperature-dependent shear viscosity to entropy ratio (η/s\eta/s) that dips below the KSS bound in the semi-classical regime before rising above it at lower temperatures, a result that aligns with the quantum-corrected absorption cross-section.

Sera Cremonini, Li Li, Xiao-Long Liu, Jun Nian2026-03-05🔬 physics

Local gauge invariant operator on isometry breaking background

This paper proposes constructing local gauge invariant operators on isometry-breaking backgrounds via the Stückelberg mechanism—effectively introducing physical clocks and rods—but argues that suppressing the resulting spacetime fluctuations to reliably define operators in localized regions (such as black hole islands) requires strong isometry breaking, potentially achieved through transitions to higher-dimensional black holes.

Min-Seok Seo2026-03-05⚛️ hep-ph