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.

Threshold asymptotics and decay for massive Maxwell on subextremal Reissner--Nordström

This paper establishes the precise late-time asymptotics and decay rates for the neutral massive Maxwell (Proca) equation on subextremal Reissner--Nordström exteriors by developing a threshold spectral theory that resolves the even-sector coupling into distinct polarization channels, thereby proving logarithmic decay for the full field while identifying a universal t5/6t^{-5/6} polynomial tail for its radiative component.

Bobby Eka Gunara2026-03-26🔢 math-ph

Mixed-State Topological Phase: Quantized Topological Order Parameter and Lieb-Schultz-Mattis Theorem

This paper extends the concept of symmetry-protected topological phases to one-dimensional mixed-state regimes with strong U(1) and weak Z2\mathbb{Z}_2 symmetries by introducing a quantized topological order parameter and demonstrating how these findings allow for a generalization of the Lieb-Schultz-Mattis theorem to mixed states independent of spectral gaps or lattice Hamiltonians.

Linhao Li, Yuan Yao2026-03-26🔢 math-ph

Two-component dark matter from a flavor-dependent U(1)U(1) gauge extension

This paper extends the phenomenological analysis of a flavor-dependent U(1)XU(1)_X gauge extension of the Standard Model by relaxing the assumption of a strong scalar hierarchy, thereby revealing a new two-component dark matter scenario comprising both fermionic and scalar particles alongside the previously studied purely fermionic case, and identifying viable parameter spaces consistent with relic density and direct detection constraints.

N. T. Duy, Duy H. Nguyen, Do Thi Ha, Duong Van Loi2026-03-26⚛️ hep-ph

Entanglement Entropy of Massive Scalar Fields: Mass Suppression, Violation of Universal mR Scaling, and Implications for Black Hole Thermodynamics

This paper demonstrates that while the entanglement entropy of massive scalar fields in the ground state follows a robust area law with exponential mass suppression, localized excited states violate universal $mR$ scaling due to the interplay between the field mass and the excitation's finite width, suggesting that black hole thermodynamics in semiclassical gravity may depend on multiple independent infrared scales.

S. Bellucci, M. Shatnev, L. Zazunov2026-03-26⚛️ hep-th

Phase Structure of Scalarized Black Holes in Einstein-Scalar-Gauss-Bonnet Gravity

This paper investigates the thermodynamic phase transitions between Schwarzschild black holes and scalarized solutions in Einstein-scalar-Gauss-Bonnet gravity, revealing that the nature of the transition (ranging from nonexistent to first- or second-order) is critically determined by the specific form of the scalar-Gauss-Bonnet coupling function.

Carlos Herdeiro, Hyat Huang, Jutta Kunz, Meng-Yun Lai, Eugen Radu, De-Cheng Zou2026-03-26⚛️ gr-qc