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.

⚛️ general relativity

Schwinger-Keldysh Cosmological Cutting Rules

This paper derives and explicitly verifies Schwinger-Keldysh cutting rules for primordial cosmological correlators, demonstrating how unitarity-based discontinuities at both tree and loop levels can be expressed as products of lower-order correlators through the introduction of specific diagrammatic combinations not typically found in standard observable calculations.

Francisco Colipí-Marchant, Gabriel Marin, Gonzalo A. Palma, Francisco Rojas2026-01-27
⚛️ general relativity

Stimulated radiation from superradiant scalar cloud in scalar-tensor theory

This paper investigates how the chameleon mechanism in scalar-tensor theories causes superradiant scalar clouds around Kerr black holes to exhibit unique growth and stimulated decay patterns in non-uniform matter distributions, generating distinct electromagnetic signals that can differentiate fundamental scalars from other light bosonic fields.

Wenyi Wang, Sousuke Noda, Taishi Katsuragawa2026-01-27
⚛️ general relativity

From Thermodynamic Criticality to Geometric Criticality: A Linear Kernel Map from Matter Susceptibilities to Black-Hole Shadows

This paper establishes a linear kernel map connecting thermodynamic matter susceptibilities to black-hole geometric observables like shadow radius, demonstrating that under mild assumptions near critical points, the thermodynamic critical exponent is directly transferred to the geometric susceptibility with controlled corrections.

Jingxu Wu, Jie Shi, Chenjia Li, Yuwei Yin2026-01-27