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

Approaching a dynamical extreme black hole horizon

This paper presents an explicit closed-form description of dynamical extreme Reissner-Nordstrom black holes by utilizing two-dimensional Jackiw-Teitelboim gravity to model non-linear s-wave dynamics near an AdS2×S2{\rm AdS}_2\times {\rm S}^2 throat, demonstrating how these singularity-free solutions approach a static extreme horizon while exhibiting the linear Aretakis instability and emitting a final burst of scalar flux.

Achilleas P. Porfyriadis, Christopher Rosen, Georgios Tsaraktsidis2026-06-09
⚛️ general relativity

Does Eternal Inflation Violate the Smeared Null Energy Condition?

This paper demonstrates that while eternal inflation involves rare stochastic upward fluctuations of the inflaton, the resulting gravitational backreaction invalidates the background spacetime assumption long before the Smeared Null Energy Condition (SNEC) can be violated, thereby confirming that standard stochastic diffusion does not inherently breach this energy bound within the semiclassical slow-roll regime.

Dong-Hui Yu, Yong Cai2026-06-09
⚛️ phenomenology

A New Route to the Annihilation of Multi-Wall String Topological Configurations

This paper proposes a new mechanism for the annihilation of cosmologically problematic domain walls attached to cosmic strings in global U(1)U(1) symmetry models, demonstrating that radiative corrections from small bare fermion masses can generate a temperature-dependent bias that triggers the network's decay, using a majoron framework with right-handed neutrinos as a representative example.

Utsav Atta, Tathagata Ghosh, Sudip Manna2026-06-09