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

Static electromagnetic Love tensors of 5-dimensional Myers-Perry black holes

This paper investigates static electromagnetic and gravitational perturbations of five-dimensional Myers-Perry black holes, demonstrating that while the electric polarization reduces to a massless scalar field, the magnetic and gravitational sectors yield special Heun equations with exact hypergeometric solutions that reveal a non-trivial mixing of angular momentum modes in the static tidal Love tensors.

Boyang Yu2026-05-19
⚛️ high-energy theory

Covariant extrinsic curvature expansion of the nonlocal effective action for a massless scalar field on a manifold with boundary

This paper employs a heat-kernel approach to derive a covariant expansion of the nonlocal effective action for a massless scalar field on a flat manifold with a curved boundary, extending previous results to general surfaces and applying the framework to calculate particle-creation rates for oscillating deformed geometries in 2+1 and 3+1 dimensions.

A. Boasso, C. D. Fosco, B. C. Guntsche, F. D. Mazzitelli2026-05-19
⚛️ general relativity

Joule-Thomson effect and Efficiency of deformed AdS-Schwarzschild black hole in presence of quintessence

This paper investigates the Joule-Thomson expansion and thermodynamic efficiency of a deformed AdS-Schwarzschild black hole in the presence of quintessence, demonstrating how the deformation parameters α\alpha, β\beta, and σ\sigma collectively govern the system's heating-cooling behavior, thermal stability, and heat engine efficiency.

Dhruba Jyoti Gogoi, Ronit Karmakar, Jyatsnasree Bora, Pohar Buragohain, Chandika Gogoi2026-05-19
⚛️ nuclear theory

Gravitational form factors of light mesons from Basis Light-Front Quantization

This paper computes the gravitational form factors of pion and kaon mesons using Basis Light-Front Quantization, finding agreement with lattice QCD for the A(Q2)A(Q^2) form factor while observing an enhanced magnitude for the D(Q2)D(Q^2) form factor at low momentum transfer due to zero-mode effects, and subsequently derives the mesons' mass and mechanical radii along with their internal pressure and shear-force distributions.

Amrita Sain, Sreeraj Nair, Chandan Mondal, Xingbo Zhao, James P. Vary2026-05-19
⚛️ high-energy theory

The Large Vector Multiplet and Gauging (2,2)(2,2) σ\sigma-models

This paper demonstrates that a recently proposed new gauge multiplet is a constrained or partially dualized version of the Large Vector Multiplet, which serves as the fundamental tool for gauging isometries on both chiral and twisted chiral fields in (2,2)(2,2) sigma models, ultimately leading to a (2,2)(2,2) βγ\beta\gamma system interacting with the sigma model.

Dmitri Bykov, Ulf Lindström, Martin Roček2026-05-19
⚛️ general relativity

Emergent Thiemann coherent states in the near-kernel sector of quantum reduced loop gravity

Using variational Monte Carlo methods with neural quantum states, this study analyzes the near-kernel sector of the Hamiltonian constraint in quantum reduced loop gravity and identifies three distinct classes of solutions, including a factorized branch that is accurately described by emergent semiclassical Thiemann coherent states.

Ilkka Mäkinen, Hanno Sahlmann, Waleed Sherif2026-05-19