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

All-multiplicity AdS4\textrm{AdS}_4 correlators in the self-dual sector

This paper derives all-multiplicity tree-level correlators for self-dual scalar theories in AdS4\textrm{AdS}_4 by expressing them as expansions in flat-space scattering amplitudes, where the gravity sector amplitudes are obtained from the gauge theory sector via a double copy prescription based on color-kinematics duality.

Humberto Gomez, Renann Lipinski Jusinskas, Arthur Lipstein, Cristhiam Lopez-Arcos2026-10-26
⚛️ high-energy theory

Gauge conditions in the perturbative quantization of quadratic gravity and its quantum Lagrangian

This paper demonstrates that while the equivalence between Hamiltonian and covariant field equations in quadratic gravity holds nonperturbatively without gauge conditions, a specific gauge is necessary in the perturbative regime to derive the theory's quantum Lagrangian and characterize its quantum modes via BFV quantization.

Jorge Bellorin, Claudio Bórquez, Byron Droguett2026-10-26
⚛️ phenomenology

Prospects of Detecting Cosmological Domain Walls in the Cosmic Microwave Background

This paper proposes that dark, gravitationally interacting cosmological domain walls leave distinct, non-Gaussian imprints on the Cosmic Microwave Background which can be detected using advanced curvelet/wavelet analyses and neural network-based inference, potentially allowing future South Pole Telescope-like surveys to probe symmetry-breaking scales as low as 10–100 MeV.

Berkin Gürbüz, Robert Brandenberger, Yitian Sun2026-10-26
⚛️ high-energy theory

Six and seven dimensional extrema of Non-SUSY heterotic theory with non-maximal enhancements

This paper proposes a construction of non-supersymmetric heterotic theories on TnT^n (n=1,2,3,4n=1,2,3,4) that utilize Weyl symmetries to identify thousands of one-loop potential extrema with non-maximal gauge enhancements, finding hundreds of tachyon-free configurations and demonstrating that the perturbative stability of associated AdS3×S3×T4AdS_3 \times S^3 \times T^4 backgrounds violates the BF bound and satisfies the refined deSitter conjecture.

Stevell Muller, Daniel Robbins, Hassaan Saleem2026-10-26
⚛️ high-energy theory

Intertwining Defects and Fermion-Boundary Scattering from TQFT

This paper utilizes the TQFT/CFT framework to construct conformal boundary conditions for free Dirac fermions preserving chiral symmetries, thereby determining fermion-boundary scattering and resolving previously open problems involving monopoles and complex gauge models by characterizing out-going states via defect operators and non-invertible topological lines.

Kantaro Ohmori, Masataka Watanabe, Pengcheng Wei, Yunqin Zheng2026-10-26