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

The Free Scalar as a Thermal Envelope for Three-Dimensional CFTs

This paper conjectures that every unitary three-dimensional conformal field theory satisfies a universal upper bound on the ratio of thermal entropy density to the stress-tensor two-point coefficient, with equality achieved by free scalars, a bound that is supported by theoretical derivations from conformal-collider positivity and verified across free, interacting, holographic, and Monte Carlo-simulated models.

Christopher P. Herzog, Andreas Stergiou2026-10-27
⚛️ lattice

Information geometry of continuum limits in lattice field theory: The Gross-Neveu model with Wilson fermions

This paper investigates the continuum limit of the two-dimensional Gross-Neveu model with Wilson fermions using information geometry, revealing that the Fisher metric distinguishes between long-distance and full-field behaviors as the lattice spacing vanishes, with irrelevant directions shrinking at different rates and the critical point residing at an infinite Fisher distance.

Akio Tomiya2026-10-27
⚛️ lattice

Spectroscopy of the SU(2) scalar-fermion-gauge system under the influence of the Brout-Englert-Higgs effect

Using lattice methods with the HiRep code, this paper investigates the ground state spectrum of an SU(2) scalar-fermion-gauge system under the Brout-Englert-Higgs effect, finding that the spectrum remains largely unaffected by bare fermion mass variations and aligns with a weakly coupled theory exhibiting the Fröhlich-Morchio-Strocchi mechanism.

Axel Maas, Sofie Martins, Georg Wieland2026-10-27
⚛️ high-energy theory

Symmetries and Higher-Form Connections in Derived Differential Geometry

This paper introduces a general definition of higher-form connections on principal ∞\infty-bundles within derived differential geometry by utilizing formal differentiation and integration to construct Atiyah L∞L_\infty-algebroids, thereby recovering known Cˇ\check{\text{C}}ech-Deligne cocycle notions and establishing connections to higher Courant algebroids with applications in higher gauge theory and supergravity.

Severin Bunk, Lukas Müller, Joost Nuiten, Richard J. Szabo2026-10-26