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.

Basic Canonical Brackets and Nilpotency Property of Noether (anti-)BRST Charges: Non-Abeian 1-Form Gauge Theory

This paper demonstrates that in D-dimensional non-Abelian 1-form gauge theories, the standard Noether (anti-)BRST charges fail to be both nilpotent and (anti-)BRST invariant due to the non-trivial Curci-Ferrari condition, necessitating the derivation of consistently modified charges that restore these fundamental properties through basic canonical methods.

R. P. Malik2026-03-26⚛️ hep-th

Stimulated absorption of single gravitons: First light on quantum gravity

This paper argues that detecting stimulated absorption of single gravitons in massive quantum resonators, correlated with LIGO gravitational wave observations, would provide the first experimental window into quantum gravity by probing the quantized interaction between gravity and matter, drawing parallels to the historical development of early quantum theory.

Victoria Shenderov (Department of Physics, Stevens Institute of Technology, Hoboken, NJ, Cornell University, Ithaca, NY), Mark Suppiah (Department of Physics, Stevens Institute of Technology, Hoboken (…)2026-03-25⚛️ gr-qc

Orthosymplectic Quivers: Indices, Hilbert Series, and Generalised Symmetries

This paper investigates generalised global symmetries in 3d N=4\mathcal{N}=4 orthosymplectic quiver gauge theories by identifying a D8D_8 categorical symmetry web and introducing an improved prescription for computing Coulomb branch Hilbert series that incorporates discrete symmetry fugacities and background magnetic fluxes to ensure consistency across various global forms and mirror dualities.

William Harding, Noppadol Mekareeya, Zhenghao Zhong2026-03-25⚛️ hep-th

Challenging Spontaneous Quantum Collapse with XENONnT

Using low-energy electronic recoil data from the first science run of the XENONnT detector and a novel model accounting for charge cancellation effects, researchers established world-leading constraints on spontaneous quantum collapse models that exclude the original parameters of the Continuous Spontaneous Localization theory for the first time.

E. Aprile, J. Aalbers, K. Abe, S. Ahmed Maouloud, L. Althueser, B. Andrieu, E. Angelino, D. Antón Martin, S. R. Armbruster, F. Arneodo, L. Baudis, M. Bazyk, L. Bellagamba, R. Biondi, A. Bismark, K. Bo (…)2026-03-25⚛️ nucl-ex

On Supersymmetric D-brane probes in 4d N=2\mathcal{N}=2 AdS2×S2\text{AdS}_2\times\mathbf{S}^2 Attractors

This paper extends the κ\kappa-symmetry analysis of supersymmetric D-brane probes in AdS2×S2\mathrm{AdS}_2 \times \mathbf{S}^2 attractors to include stationary, non-static worldlines with angular momentum, revealing new 12\frac{1}{2}-BPS configurations that saturate a generalized energy bound and enrich the spectrum of supersymmetric states relevant to black hole microstate counting and holography.

Alberto Castellano, Carmine Montella, Matteo Zatti2026-03-25⚛️ hep-th