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.

🔭 astrophysics

Thermal enhancement of inflationary magnetic fields

This paper proposes that assuming a thermal initial state for gauge fields during inflation, rather than the standard vacuum, introduces a dissipative boost that enhances primordial magnetic fields by up to 101610^{16}, suggesting that embedding this mechanism in a warm inflation framework offers a promising path to inflationary magnetogenesis without requiring non-minimal couplings or modified electrodynamics.

Arjun Berera, Suddhasattwa Brahma, Zizang Qiu, Rudnei O. Ramos2026-03-12
⚛️ high-energy theory

Towards Two-to-Two Scattering of Scalars in Asymptotically Safe Quantum Gravity

This paper computes the graviton-mediated two-to-two scattering amplitude and cross-section for scalar particles within asymptotically safe quantum gravity by determining the full momentum dependence of the scalar-graviton vertex via the functional renormalization group, demonstrating that the results recover General Relativity at low energies while preserving unitarity in the ultraviolet regime.

Angelo P. Chiesa, Jan M. Pawlowski, Manuel Reichert2026-03-12
⚛️ high-energy theory

States of 2D Yang-Mills and Large-Volume Entanglement

This paper investigates entanglement in two-dimensional Yang-Mills theory, revealing that while standard Euclidean path integral states become separable at infinite volume, specific configurations involving Wilson lines and loops maintain finite entanglement through projectors onto non-trivial vacuum sectors, offering new insights into large-volume confinement transitions.

Dmitry Melnikov, Jefferson T. Oliveira, Valmir Peixoto, Marcia Tenser2026-03-12
⚛️ nuclear theory

Finite-Size Scaling of Net-Proton Cumulants in Heavy-Ion Collisions: Remarks on the Interpretation of a Recent Analysis

This paper critically examines a recent analysis claiming evidence for a QCD critical end point via finite-size scaling of net-proton cumulants, highlighting methodological issues regarding acceptance windows, multiplicity scaling, and thermodynamic fields that must be addressed for a consistent interpretation.

Roy A. Lacey (Department of Chemistry, Stony Brook University, Stony Brook, NY, USA)2026-03-12
⚛️ general relativity

Thermodynamically massless Simpson-Visser black holes

This paper demonstrates that within Einstein gravity coupled to nonlinear electrodynamics and a phantom scalar field, the Simpson-Visser regular black hole possesses a vanishing thermodynamic mass due to boundary contributions, yet remains thermodynamically less favorable than its singular counterpart when compared under identical thermal and magnetic conditions.

Thanasis Karakasis, Emmanuel N. Saridakis, Zi-Yu Tang2026-03-12
⚛️ high-energy theory

Efficient Conformal Block Evaluation with GoBlocks

This paper introduces GoBlocks\texttt{GoBlocks}, a high-performance Go-based tool for rapidly evaluating conformal blocks in odd spacetime dimensions via recursive relations, demonstrating significant speed improvements over existing packages and successfully applying the method to optimize the mixed-correlator bootstrap of the 3D Ising model and O(N)O(N) vector models.

James Chryssanthacopoulos, Vasilis Niarchos, Constantinos Papageorgakis, Alexander G. Stapleton2026-03-12
🔢 mathematics

From path integral quantization to stochastic quantization: a pedestrian's journey

This paper establishes the equivalence between path integral and stochastic quantizations for generic scalar Euclidean quantum field theories by providing two novel proofs based on Taylor interpolations indexed by forests: one operating at the level of individual Feynman expansion terms and the other directly at the path integral level without requiring a full perturbative expansion.

Dario Benedetti, Ilya Chevyrev, Razvan Gurau2026-03-12