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

Superconformal index for N=4\mathcal{N} = 4 Super Yang-Mills and Elliptic Macdonald Polynomials

This paper establishes a connection between the superconformal index of N=4\mathcal{N}=4 U(N)U(N) Super Yang-Mills theory and the elliptic Ruijsenaars-Schneider integrable system by expressing the index in terms of elliptic Macdonald polynomials, which enables a systematic perturbative expansion in the elliptic parameter and recovers known results in specific limits.

Gao-fu Ren, Min-xin Huang2026-04-02
⚛️ general relativity

Universal Non-Gaussian Signatures from Transient Instabilities

This paper identifies universal non-Gaussian signatures in the inflationary bispectrum arising from transient tachyonic instabilities of entropic fluctuations, demonstrating that exact numerical calculations reveal distinctive features like magnified folded configurations and tachyonic resonances that cannot be fully captured by single-field effective descriptions, while providing new templates for observational constraints on non-geodesic inflationary attractors.

Shuntaro Aoki, Diederik Roest, Denis Werth2026-04-02
🔢 mathematics

Universal TT-matrices for quantum Poincaré groups: contractions and quantum reference frames

This paper develops a contraction theory for universal TT-matrices of quantum groups to derive a new (1+1) centrally extended quantum Poincaré algebra whose dual form naturally describes relativistic quantum reference frame transformations and contracts to the known Galilei TT-matrix for non-relativistic frames.

Angel Ballesteros, Diego Fernandez-Silvestre, Ivan Gutierrez-Sagredo2026-04-02
⚛️ general relativity

Thermodynamics, Shadow, and Quasinormal Modes of AdS Ayón--Beato--García Massive Black Hole

This paper investigates the thermodynamics, photon sphere, shadow, and dynamical stability of an AdS Ayón-Beato-García massive black hole, revealing how graviton mass and magnetic charge influence its Gibbs free energy, shadow radius, and quasinormal modes while confirming its overall stability.

Dharm Veer Singh, Sudhaker Upadhyay, Amit Kumar, Yerlan Myrzakulov, Kairat Myrzakulov, Himanshu Kumar Sudhanshu2026-04-02
⚛️ high-energy theory

Cosmological Wavefunctions as Amplitudes: Dual Shuffle Factorization and Uniqueness from New Hidden Zeros

This paper demonstrates that tree-level cosmological wavefunctions in ϕn\phi^n theories are uniquely determined by locality and a newly discovered set of hidden zeros that enforce a dual "shuffle" factorization principle, thereby extending on-shell methods and the zeros-BCFW correspondence from flat-space scattering amplitudes to cosmology.

Yang Li, Laurentiu Rodina2026-04-02