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

Noncoincidence f(Q)f(Q)-Cosmology with Dark Matter Coupled to Gravity

This paper investigates FLRW cosmology in symmetric teleparallel f(Q)f(Q) gravity with a nonminimal dark matter coupling, demonstrating that the noncoincidence gauge enables a multi-scalar field representation where the coupling facilitates a viable matter-dominated era and late-time acceleration, with the de Sitter solution emerging as the unique future attractor for power-law theories.

A. Abebe, P. S. Apostolopoulos, A. Giacomini, G. Leon, F. Moncada, A. Paliathanasis2026-03-26
⚛️ general relativity

Energy conditions of bouncing solutions in quadratic curvature gravity coupled with a scalar field

This paper analyzes energy conditions in nonsingular bouncing cosmologies within quadratic curvature gravity coupled to a scalar field, revealing that while the scalar-field description satisfies most conditions except the strong one, the effective energy-momentum tensor approach violates all four conditions near the bounce, thereby highlighting the intrinsically non-Einsteinian nature required to avoid initial singularities.

Yuki Hashimoto, Kazuharu Bamba, Sanjay Mandal2026-03-26
🌀 nonlinear sciences

New soliton solutions for Chen-Lee-Liu and Burgers hierarchies and its Bäcklund transformations

This paper formulates positive and negative flows of the Chen-Lee-Lee-Liu model and Burgers hierarchy using Riemann-Hilbert-Birkhoff decomposition, derives their soliton solutions and vertex operators via a dressing method for both zero and constant non-zero vacua, and introduces gauge-Bäcklund transformations to generate additional multi-soliton solutions through interactions with integrable defects.

Y. F. Adans, H. Aratyn, C. P. Constantinidis, J. F. Gomes, G. V. Lobo, T. C. Santiago2026-03-26
⚛️ high-energy theory

Thermodynamics of Hairy Black Holes in Quantum Regimes: Insights from Horndeski Theory

This paper investigates non-perturbative quantum gravitational corrections to the thermodynamics of nn-dimensional Schwarzschild–Tangherlini–Anti-de Sitter black holes, revealing that these effects induce a Hawking–Page transition, suppress specific heat magnitude, and reverse the sign of average quantum work during evaporation, thereby qualitatively altering the phase structure and energetics beyond what perturbative corrections can capture.

Behnam Pourhassan, Izzet Sakalli, Houcine Aounallah, Fabiano F. Santos2026-03-26
🔢 mathematics

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 t−5/6t^{-5/6} polynomial tail for its radiative component.

Bobby Eka Gunara2026-03-26
⚛️ phenomenology

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