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

New conditions for multipartite entanglement wedge connectivity in nn-to-nn holographic scattering

This paper extends the Connected Wedge Theorem to nn-to-nn holographic scattering in AdS3_3 by establishing that a single pairwise causal intersection suffices to ensure full multipartite entanglement wedge connectivity, while also deriving novel necessary conditions for the connectivity of input wedges and the non-emptiness of the generalized bulk scattering region.

Bowen Zhao2026-07-07
⚛️ phenomenology

UV Luminosity Functions from HST and JWST: A Possible Resolution to the High-Redshift Galaxy Abundance Puzzle and Implications for Cosmic Strings

This paper demonstrates that incorporating cosmic strings into galaxy formation models can explain the unexpectedly high abundance of bright high-redshift galaxies observed by JWST and HST without altering star-formation physics, while simultaneously establishing a new, tighter upper bound on cosmic string tension.

Mattéo Blamart, Adrian Liu, Robert Brandenberger, Julian B. Muñoz, Bryce Cyr2026-07-07
⚛️ high-energy experiments

EFT Validity and Truncation Uncertainty from few Nuisance Parameters

This paper proposes an automation-friendly algorithm that utilizes the calculable O(Λ4)\mathcal{O}(\Lambda^{-4}) contributions in SMEFT to model higher-order truncation uncertainties with a minimal set of nuisance parameters, thereby significantly reducing parameter counts and ensuring EFT validity by constraining bounds to kinematic regions where uncertainties are subdominant.

Benoît Assi, Adam Martin, William Shepherd2026-07-07
⚛️ high-energy theory

Pre-Strings Lectures on Artificial Intelligence

These lecture notes from the Pre-Strings 2026 school in Shanghai present a comprehensive overview of the bidirectional relationship between artificial intelligence and string theory, covering neural network fundamentals through a field-theoretic lens, the application of neural networks to define and solve field theories, and the use of AI techniques to advance research in string theory and related mathematical physics.

James Halverson2026-07-07
⚛️ general relativity

Flipped rotating axion: Baryogenesis and Dark Matter

This paper proposes a mechanism where a spectator axion-like particle with a periodic non-minimal coupling to gravity undergoes a vacuum manifold flip at the end of non-oscillating inflation, enabling its subsequent rotation to simultaneously generate the baryon asymmetry via spontaneous baryogenesis and constitute dark matter, provided a specific non-minimal coupling strength prevents condensate fragmentation.

Konstantinos Dimopoulos2026-07-07