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

Gravitational Wave Echoes of the First Order Phase Transition in a Kination-Induced Big Bang

This paper investigates the stochastic gravitational wave background generated by a first-order phase transition ending a kination-dominated epoch in the Kination-Induced Big Bang scenario, demonstrating that such a mechanism can dynamically induce metastability and produce a signal spanning nHz to MHz frequencies that is consistent with Pulsar Timing Array observations and testable by future interferometers.

Richard Casey, Katherine Freese, Evangelos I. Sfakianakis2026-02-17