hep-th papers | Gist.Science

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

Euler-Heisenberg actions for gauge-axial background vectors: Hessian diagonalization, sector classification, and applications

This paper derives closed-form one-loop Euler-Heisenberg effective actions for Dirac fermions in combined electromagnetic and massive axial vector backgrounds by diagonalizing the functional Hessian to classify stability sectors, revealing novel nonperturbative pair-production rates with vacuum stabilization, dynamical chiral symmetry breaking, and potential applications ranging from baryogenesis to condensed matter physics.

Lucas Pereira de Souza2026-08-27

🔢 mathematics

A Classification of Invertible Stabilizer Codes

This paper establishes a classification framework for invertible translation-invariant stabilizer codes using relative L-theory groups, revealing that their equivalence classes in three and four spatial dimensions correspond respectively to the Witt group of 2D abelian topological orders and a conjectural non-trivial invertible phase.

Roman Geiko, Georgii Shuklin2026-08-27

⚛️ high-energy theory

Generalized cluster states in 2+1d: non-invertible symmetries, interfaces, and parameterized families

This paper constructs and analyzes 2+1-dimensional lattice models of symmetry-protected topological phases with non-invertible symmetries, known as generalized cluster states, by gauging subgroup symmetries and utilizing tensor networks to demonstrate that their interfaces are described by strip 2-algebras leading to degenerate modes and to establish a framework for generalized Thouless pumps.

Kansei Inamura, Shuhei Ohyama2026-08-27

⚛️ general relativity

Unveiling the spectral morphological division of fast radio bursts with CHIME/FRB Catalog 2

Using unsupervised machine learning on the CHIME/FRB Catalog 2, this study reveals that fast radio bursts naturally divide into two spectral morphology-based clusters, suggesting that the observed differences between repeating and nonrepeating sources arise from selection effects rather than distinct physical populations.

Wan-Peng Sun, Yin-Long Cao, Yong-Kun Zhang, Ji-Guo Zhang, Xiaohui Liu, Yichao Li, Fu-Wen Zhang, Wan-Ting Hou, Jing-Fei Z (…)2026-08-27

⚛️ high-energy theory

Remarks on non-invertible symmetries on a tensor product Hilbert space in 1+1 dimensions

This paper proposes an index for non-invertible symmetry operators in 1+1 dimensions on tensor product Hilbert spaces, demonstrating that their fusion rules are restricted to weakly integral fusion categories and introducing a class of "topological injective" matrix product operators to construct defect Hilbert spaces and sequential quantum circuits for these symmetries.

Kansei Inamura2026-08-27

🔢 mathematics

Genus 4 Supermoduli Space Is Not Projected

This paper proves that the even-spin component of the supermoduli space for genus 4 super Riemann surfaces is non-projected by constructing a specific compact curve and demonstrating that the obstruction class to projectedness does not vanish when restricted to it.

Ron Donagi, Simone Noja2026-08-27

⚛️ general relativity

Anti-Ultralocality and Plateau Models of Inflation

This paper demonstrates that plateau-shaped inflaton potentials, often favored for their low tensor-to-scalar ratios, are particularly susceptible to anti-ultralocality effects which, starting from generic initial conditions, either prevent sufficient inflation or trigger quantum runaway, thereby imposing increasingly severe fine-tuning requirements as the inflation energy scale decreases.

Joshua Shterenberg, David Garfinkle, Anna I. Rosenzweig, David Shlivko, Paul J. Steinhardt2026-08-27

⚛️ high-energy theory

Equivariant Localization for N=2 Theories with Hypermultiplets

This paper applies equivariant localization in the $\Omega$ -background to compute partition functions and correlation functions for $\mathcal{N}=2$ supersymmetric gauge theories with hypermultiplets on $\mathbb{CP}^2$ , identifying a specific factor distinguishing $U(2)$ from $SU(2)$ / $SO(3)$ results and exploring connections to $S$ -duality.

Matthias Dennemann, Jan Manschot2026-08-27

⚛️ high-energy theory

Remarks on Vafa-Witten theory, or how to sit on a wall

This paper establishes three key results regarding refined $SU(N)$ Vafa-Witten invariants on Hirzebruch surfaces: it simplifies the modular anomaly equation using extended complementary generalized error functions, evaluates the variation of modular completions under polarization changes, and derives a wall-crossing formula expressing invariants at marginal stability walls in terms of lower-rank invariants and those on either side of the wall.

Sergei Alexandrov, Aradhita Chattopadhyaya2026-08-27

⚛️ high-energy theory

Tropical Open Strings in a Kalb-Ramond Background

This paper investigates tropical open strings in a constant Kalb-Ramond background, demonstrating that the field separates the theory into a generic sector with nonlocal brackets and a critical sector characterized by a degenerate Legendre map, primary constraints, and a finite reduced phase space.

Sarthak Duary, Vi Hong, Sourav Maji2026-08-27

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