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.

Quantized Dissipation from the Inverse-Square Anomaly in a Non-Hermitian Klein-Gordon Field

This paper presents an exactly solvable non-Hermitian Klein-Gordon model where an anomalous inverse-square potential, combined with outgoing boundary conditions, transforms the fall-to-the-center instability into a discrete, log-periodic spectrum of complex energies, thereby establishing a universal framework for quantized dissipation and emergent scale anomalies in relativistic open quantum systems.

Mansour Haghighat, Ali Nouri2026-03-31⚛️ hep-th

Enumeration of general planar hypermaps with an alternating boundary

This paper extends the enumeration of planar hypermaps with an alternating boundary to the general case, including Ising-decorated maps, by developing a new strategy involving the simultaneous elimination of two catalytic variables to derive algebraic equations and explicit rational parametrizations, thereby demonstrating that certain properties specific to the previously studied m-constellation case do not hold generally.

Valentin Baillard, Ariane Carrance, Bertrand Eynard2026-03-31🔢 math-ph

Removing the Cosmological Bound on the Axion Scale via Confinement During Inflation

This paper proposes that implementing early axion relaxation through high-scale confinement within an $SU(5)$ grand unified theory during inflation generates an early potential that dilutes the axion's energy density, thereby removing the cosmological upper bound on the axion decay constant and allowing it to serve as a viable dark matter candidate for arbitrarily large values across all known axion models.

Gia Dvali, Sophia Fitz, Lucy Komisel2026-03-31⚛️ hep-ph

Scattering in strong field QED in a non-null background

This paper derives master formulae for tree-level and one-loop scattering amplitudes of arbitrary photon numbers in scalar and spinor QED within non-null background electromagnetic fields using the worldline formalism, thereby extending previous constant-field results to account for realistic laser-plasma dispersive properties through a systematic expansion in the non-null parameter.

Patrick Copinger, James P. Edwards, Karthik Rajeev2026-03-31⚛️ hep-th