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.

⚛️ phenomenology

Neural S-matrix bootstrap II: solvable 4d amplitudes with particle production

This paper employs a neural-network-based solution to nonlinear integral equations derived from unitarity and crossing symmetry to construct a solvable family of nonperturbative 4D scattering amplitudes that exhibit rich features like particle production and Regge behavior, while demonstrating that multi-particle data can be dynamically tuned to suppress low-spin production through a phenomenon termed "Aks screening."

Mehmet Asim Gumus, Damien Leflot, Piotr Tourkine, Alexander Zhiboedov2026-01-30
⚛️ general relativity

Post-Newtonian Effective Field Theory Approach to Entanglement Harvesting, Quantum Discord and Bell's Nonlocality Bound Near a Black Hole

This paper employs a post-Newtonian effective field theory approach to analytically derive the reduced states of Unruh-DeWitt detectors near a tidally deformable quantum black hole, thereby characterizing the black hole's influence on entanglement harvesting, quantum discord, and Bell's nonlocality bounds while avoiding the computational complexities of conventional curved spacetime methods.

Feng-Li Lin, Sayid Mondal2026-01-29
🔬 condensed matter

Non-invertible symmetries of two-dimensional Non-Linear Sigma Models

This paper constructs non-invertible topological defects in two-dimensional Non-Linear Sigma Models by generalizing T-duality-based half-space gauging to any T-dualisable model with a fixed-point-free isometry, thereby extending known results beyond free bosons and rational conformal field theories while elucidating the microscopic origin of non-invertibility and its implications for symmetry matching and global obstructions.

Guillermo Arias-Tamargo, Chris Hull, Maxwell L. Velásquez Cotini Hutt2026-01-29