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.

Holographic renormalization and the variational problem for mixed boundary conditions via a solution-dependent superpotential-like function

This paper introduces a solution-dependent superpotential-like function $W(\phi)$ to resolve the variational problem and achieve holographic renormalization for four-dimensional Einstein gravity with mixed boundary conditions, demonstrating how the boundary deformation fixes the near-boundary expansion of $W(\phi)$ to render the on-shell action finite without additional scalar boundary terms.

David Choque, Raúl Rojas2026-05-07⚛️ hep-th

Probing Low-Luminosity Gamma-Ray Emission from SNR G296.5+10.0 and CCO 1E 1207.4-5209 with CTAO

This study models the transport of cosmic rays and the gamma-ray emission from SNR G296.5+10.0 and the associated CCO 1E 1207.4-5209, showing that the Cherenkov Telescope Array Observatory (CTAO) can detect the characteristic hadronic and leptonic emissions of this unique system to provide, for the first time, constraints on particle acceleration in environments of luminosity-weak CCO supernova remnants.

Luana N. Padilha, Rubens Jr. Costa, Rita C. dos Anjos, Jaziel G. Coelho2026-05-07⚛️ hep-ph

Moduli Spaces in CFT: Large Charge Operators

This paper establishes a necessary condition for conformal symmetry breaking in CFTs with a broken continuous global symmetry—that the theory must contain a tower of charged operators with scaling dimensions asymptotically linear in the charge—and demonstrates how this general principle connects to BPS states in supersymmetric theories and massive particle spectra on the moduli space.

Gabriel Cuomo, Leonardo Rastelli, Adar Sharon2026-05-07⚛️ hep-th

All 4 x 4 solutions of the quantum Yang-Baxter equation

This paper completes the classification of 4x4 solutions to the quantum Yang-Baxter equation by identifying the remaining non-regular solutions and demonstrating that, unlike regular cases, non-regular Lax operators can yield R-matrices that satisfy a modified rather than the standard Yang-Baxter equation.

Marius de Leeuw, Vera Posch2026-05-07🌀 nlin

Does thermal leptogenesis in a canonical seesaw rely on initial memory?

This paper demonstrates that thermal leptogenesis in the canonical type-I seesaw framework retains a "memory" of asymmetries generated by heavier right-handed neutrinos through flavor-projection effects, which partially survive the washout of the lightest neutrino and significantly modify the final $B-L$ asymmetry beyond the predictions of classical Boltzmann equations.

Partha Kumar Paul, Narendra Sahu, Shashwat Sharma2026-05-07⚛️ hep-ph

A Charged and Neutral Spin-$4$ Currents in the Grassmannian-like Coset Model

This paper determines primary charged and neutral spin-4 currents in a Grassmannian-like coset model by analyzing the second-order poles in specific operator product expansions involving spin-3 currents, while also deriving the operator product expansion between charged spin-2 and spin-3 currents for generic parameters and its large $k$ limit.

Changhyun Ahn, Minsu Kang2026-05-07⚛️ hep-th

Equivariant localization for $D=5$ gauged supergravity

This paper develops an equivariant localization framework for computing the on-shell action of supersymmetric solutions in $D=5$ Euclidean gauged supergravity by utilizing an additional Killing vector to reduce the system to $D=4$ , thereby enabling the calculation of dual SCFT quantities like the supersymmetric Casimir energy and index without requiring explicit supergravity solutions.

Pietro Benetti Genolini, Jerome P. Gauntlett, Yusheng Jiao, Jaeha Park, James Sparks2026-05-07⚛️ hep-th

Non-Commutative Gauge Theory at the Beach

This paper demonstrates that a non-commutative five-dimensional Chern-Simons theory on the projective spinor bundle compactifies to the KP equation and its dispersionless limit, revealing that all tree-level amplitudes vanish and that the theory's surface defect vertex algebra $W_{1+\infty}$ contracts to $w_{1+\infty}$ in the dispersionless limit.

Roland Bittleston, Simon Heuveline, Surya Raghavendran, David Skinner2026-05-07🌀 nlin

Continuum limit of gauged tensor network states

This paper demonstrates that the continuum limit of specific gauged tensor networks is well-defined, yielding a new class of states suitable for the non-perturbative study of gauge theories directly in the continuum.

Gertian Roose, Erez Zohar2026-05-07⚛️ hep-lat

From Asymptotically Flat Gravity to Finite Causal Diamonds

This paper establishes an identification between the phase space of the soft sector in four-dimensional asymptotically flat gravity and that of a spherically symmetric finite causal diamond in Minkowski spacetime, demonstrating that the leading soft graviton mode corresponds to the radial fluctuation of the diamond's size while the Goldstone mode encompasses both this fluctuation and its symplectic partner.

Luca Ciambelli, Temple He, Kathryn M. Zurek2026-05-07⚛️ gr-qc

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