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.

⚛️ nuclear theory

Generalized Beth--Uhlenbeck entropy formula from the Φ−Φ-derivable approach

This paper derives a generalized Beth-Uhlenbeck entropy formula for dense fermion systems with strong correlations using the Φ\Phi-derivable approach, extending the formalism beyond the low-density limit to include bound states, scattering states, and Mott dissociation while revealing a unique "squared Lorentzian" spectral density shape near the mass shell.

David Blaschke, Gerd Röpke, Gordon Baym2026-10-14
⚛️ high-energy theory

Dirac fermions on a surface with localized strain

This paper investigates how localized Gaussian strain on a two-dimensional curved surface induces an attractive geometric potential and modifies the Fermi velocity for massless Dirac fermions, leading to the formation of bound states and localized Landau levels under an external magnetic field, thereby advancing the understanding of strain-induced electronic effects in materials like graphene.

Samuel B. B. Almeida, J. E. G. Silva, C. A. S. Almeida2026-10-14
🔢 mathematics

Symmetric Gapped States and Symmetry-Enforced Gaplessness in 3-dimensions

This paper establishes a framework for characterizing the infrared phases of 3D fermionic theories with finite symmetries by classifying quantum anomalies into two distinct classes: those that permit symmetric gapped states and those that enforce symmetry-preserving gaplessness, thereby providing concrete predictions for candidate IR phases in (3+1)-dimensional gauge theories.

Arun Debray, Matthew Yu, Weicheng Ye2026-10-14
⚛️ high-energy theory

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

This paper proposes an index theory for non-invertible symmetries in 1+1 dimensions on lattice tensor product Hilbert spaces, generalizing the Gross-Nesme-Vogts-Werner index to show that such symmetries are restricted to weakly integral fusion categories, while introducing "topological injective" matrix product operators to construct defect Hilbert spaces and sequential quantum circuits for these symmetries.

Kansei Inamura2026-10-14
⚛️ lattice

Phase diagram of a lattice fermion model with symmetric mass generation

Using fermion-bag Monte Carlo simulations, this study reveals that introducing a small nonzero four-fermion coupling (UBU_B) to a lattice fermion model with symmetric mass generation splits its single exotic quantum phase transition into two distinct conventional transitions (Gross-Neveu and 3D XY) separated by an intermediate spontaneous symmetry breaking phase.

Sandip Maiti, Debasish Banerjee, Shailesh Chandrasekharan, Marina K. Marinkovic2026-10-14
⚛️ high-energy theory

New variants of N=3,4N=3,4 superconformal mechanics

Inspired by supersymmetric Schwarzian mechanics, this paper constructs new N=3N=3 and N=4N=4 superconformal mechanical systems with maximal symmetries OSp(3∣2)OSp(3|2) and D(1,2;α)D(1,2;\alpha) by introducing additional fermionic fields, including a novel N=4N=4 variant where all bosonic subalgebras admit a bosonic realization and $so(3)$ currents allow for flexible underlying geometries.

Nikolay Kozyrev, Sergey Krivonos2026-10-12