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

Testing the Weak Gravity Conjecture via Gravitational Lensing, Black Hole Shadows, and Barrow Thermodynamics in F(R)-Euler-Heisenberg (A)dS Black Holes

This paper investigates the interplay between the Weak Gravity Conjecture and the Weak Cosmic Censorship Conjecture in F(R)F(R)-Euler-Heisenberg (A)dS black holes by demonstrating their thermodynamic compatibility through Barrow entropy, confirming the restoration of photon spheres via Euler-Heisenberg coupling, and analyzing observational signatures including gravitational lensing and black hole shadows.

Saeed Noori Gashti, Izzet Sakalli, Erdem Sucu, Mohammad Reza Alipour, Ankit Anand, Mohammad Ali S Afshar, Behnam Pourhas (…)2026-02-27
⚛️ lattice

Spatially inhomogeneous confinement-deconfinement phase transition in rotating QGP

Using first-principles lattice simulations, this paper reveals a novel spatially inhomogeneous phase in rotating gluon plasma where confining and deconfining regions coexist in thermal equilibrium, with the deconfined phase localized near the rotation axis and the confined phase at the periphery, a structure explained by action anisotropy in the curved co-rotating background rather than the standard Tolman-Ehrenfest law.

V. V. Braguta, M. N. Chernodub, Ya. A. Gershtein, A. A. Roenko2026-02-27
⚛️ lattice

Universal and non-universal finite-volume effects in the vicinity of chiral phase transition in (2+1)-flavor QCD

This paper presents a finite-size scaling analysis of the chiral order parameter in (2+1)-flavor QCD using HISQ lattice data, demonstrating that infinite-volume extrapolated results align with expected O(2)O(2) scaling behavior while quantifying finite-size deviations to improve the precision of chiral phase transition temperature determinations.

Sabarnya Mitra, Jishnu Goswami, Frithjof Karsch2026-02-27
⚛️ lattice

Symmetric Mass Generation via Multicriticality in a 3D Lattice Gross-Neveu Model

Using large-scale Monte Carlo simulations, this study demonstrates that a 3D lattice Gross-Neveu model with two four-fermion interactions exhibits a multicritical point where the direct transition to a symmetric massive phase splits into two successive transitions (Gross-Neveu and XY universality classes) separated by a symmetry-broken phase, thereby unifying conventional and unconventional fermion mass generation mechanisms.

Sandip Maiti, Debasish Banerjee, Shailesh Chandrasekharan, Marina K. Marinkovic2026-02-27
⚛️ high-energy theory

Thermodynamics Positivity Bound from 3-Form Black Holes and Inflation with Higher-Derivative Corrections

This paper establishes that thermodynamic positivity bounds and swampland criteria, when applied to 3-form gauge fields with higher-derivative corrections, impose stricter constraints on extremal black hole masses and inflationary potentials than dynamics alone, effectively ruling out small-field inflation models while supporting viable large-field scenarios.

Nutthaphat Lunrasri, Chakrit Pongkitivanichkul2026-02-26
⚛️ high-energy theory

Matrix Correlators as Discrete Volumes of Moduli Space I: Recursion Relations, the BMN-limit and DSSYK

This paper demonstrates that specific correlators in generic one-matrix models define discrete volumes of Riemann surface moduli spaces obeying a discrete Mirzakhani-like recursion, which continuously recovers Kontsevich volumes in a BMN-like limit and yields a discrete qq-analog of Weil--Petersson volumes for DSSYK, thereby confirming a conjecture by K. Okuyama.

Alessandro Giacchetto, Pronobesh Maity, Edward A. Mazenc2026-02-26
⚛️ high-energy theory

Direction-of-arrival estimation of a gravitational wave by correlations between quadrupole moments of pulsar timings

This paper proposes a method to estimate the direction of arrival of gravitational waves from isolated sources, such as supermassive black hole binaries, by analyzing the rank-2 traceless correlation matrix of quadrupole moments in pulsar timing data, demonstrating its potential for high angular resolution with future observatories like the Square Kilometer Array.

Taichi Ueyama, Hodaka Tamura, Hideki Asada2026-02-26