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

Geometric entropy and time-like entanglement entropy on a rotating BTZ black hole

This paper analyzes the double Wick rotation of a rotating BTZ black hole to derive a dual transition matrix with an imaginary chemical potential, demonstrating that geometric and time-like entanglement entropies can be reproduced through specific coordinate identifications and defining a new Lorentzian entanglement growth based on the linear growth coefficient of the time-like entropy.

Huayu Dai, Xi-Hao Fang, Mitsutoshi Fujita, Song He2026-04-20
⚛️ high-energy theory

Dirac-Bergmann analysis of SW-mapped non-commutative U(1)U(1) electrodynamics with external currents

This paper employs the Dirac-Bergmann algorithm to demonstrate that introducing fixed external currents into Seiberg-Witten mapped non-commutative U(1)U(1) electrodynamics creates a source-compatibility obstruction located within the Dirac constraint chain, which typically resolves by fixing the primary multiplier rather than generating new constraints, thereby limiting a complete reduced-phase-space analysis to specific first-class subcases.

J. Manuel Cabrera, A. G. Andarcia Caballero, J. M. Paulin Fuentes2026-04-20
⚛️ high-energy theory

Coulomb Potential in Podolsky-Carroll-Field-Jackiw Electrodynamics

This paper investigates the Coulomb potential within a combined Podolsky and Carroll-Field-Jackiw electrodynamics framework, demonstrating that while the Podolsky term regularizes short-distance divergences, the Lorentz-violating CFJ background can reintroduce these divergences and significantly alter the interaction potential through both spatial anisotropy and timelike dispersion effects.

D. S. Cabral, L. A. S. Evangelista, A. F. Santos2026-04-20
⚛️ general relativity

Probing Primordial Black Holes with upcoming Radio Telescopes: a case study for LOFAR2.0, FAST Core Array and BINGO

This paper forecasts that upcoming radio telescopes, specifically LOFAR2.0, FAST Core Array, and BINGO, will significantly enhance the ability to constrain the fraction of dark matter composed of Primordial Black Holes by detecting or ruling out lensed Fast Radio Bursts across various mass ranges.

Joao R. L. Santos, Guillem Domènech, Amilcar R. Queiroz2026-04-20