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.

Access to Klein Tunneling via Space-Time Modulation

This paper demonstrates that space-time modulation of electromagnetic potentials enables Klein tunneling at energy thresholds up to four orders of magnitude lower than static conditions by creating a velocity-tunable gap that allows transitions between opposite-energy continua without requiring their overlap, suggesting experimental feasibility with flying-focus fronts and relativistic electron beams.

Furkan Ok, Amir Bahrami, Christophe Caloz2026-04-17⚛️ hep-th

Exact, non-singular black holes from a phantom DBI Field as primordial dark matter

This paper presents the first exact, non-singular black hole solution in General Relativity sourced by the phantom branch of a Dirac-Born-Infeld scalar field, which resolves the central singularity via kinetic stiffness and allows primordial black holes to survive evaporation as gram-scale relics, thereby opening a new mass window for dark matter.

Tausif Parvez (IIT Bombay), S. Shankaranarayanan (IIT Bombay)2026-04-17⚛️ gr-qc