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

Witten-O'Raifeartaigh potential revisited in the context of Warm Inflation

This paper demonstrates that the Witten-O'Raifeartaigh potential can support a unified cosmological model where Warm Inflation occurs on its steep left wing and transient dark energy arises on its flatter right wing, provided the potential is normalized differently for each era and the quintessence field incorporates dissipative dynamics to sustain slow-roll.

Suratna Das, Umang Kumar, Swagat S. Mishra, Varun Sahni2026-03-09
⚛️ general relativity

Motions of spinning particles and chaos bound in Reissner-Nordström spacetime

This paper demonstrates that the chaos bound proposed in MSS can be violated in the spinor field of a Reissner-Nordström black hole by analyzing the orbital motions of both neutral and charged spinning particles, showing that sufficiently large spin magnitudes or specific spin-angular momentum alignments lead to Lyapunov exponents exceeding the surface gravity.

Chuang Yang, Deyou Chen, Yongtao Liu2026-03-09
⚛️ general relativity

Exact one-loop QED actions in global (A)dS2\mathrm{(A)dS}_2

This paper derives exact one-loop QED effective actions for scalar and spinor fields in global (anti-)de Sitter spacetime under a uniform electric field by utilizing the in-out formalism and Bogoliubov coefficients, revealing a strong interplay between electric fields and spacetime curvature while recovering known limits in pure (A)dS and Minkowski spaces.

Chiang-Mei Chen, Sang Pyo Kim, Cristian Andres Rivera Medina2026-03-09
⚛️ phenomenology

Two Higgs Doublet Model from Six Dimensional Gauge Theory

This paper proposes an improved Two Higgs Doublet Model derived from six-dimensional $SU(4)$ gauge theory compactified on an orbifold, where the inclusion of brane-localized gauge kinetic terms naturally enforces CP conservation and Z2Z_2 symmetry at tree level while allowing for the generation of soft symmetry-breaking masses and the Standard Model Higgs mass at the one-loop level.

Kento Akamatsu, Takuya Hirose, Nobuhito Maru, Akio Nago2026-03-09