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

Resonant false vacuum decay in two dimensions on a 4000-qubit quantum annealer

Using a 4000-qubit quantum annealer to simulate a two-dimensional quantum Ising model, researchers demonstrated a distinct regime of false vacuum decay where resonant conditions enable domain growth to vastly outpace nucleation, resulting in nearly ballistic expansion consistent with Kardar-Parisi-Zhang universality.

Gregor Humar, Jean-Yves Desaules, Luka Pavešić, Marko Ljubotina, Zlatko Papić, Kristel Michielsen, Jaka Vodeb2026-06-25
⚛️ high-energy theory

Electroweak corrections to Higgs boson pair production: The quark channel

This paper presents the first calculation of mixed QCD-electroweak corrections to Higgs boson pair production in the quark-antiquark channel, deriving fully analytic virtual amplitudes and implementing them in the POWHEG-BOX framework to reveal significant shape modifications in differential cross sections, particularly near the production threshold.

Marco Bonetti, Gudrun Heinrich, Philipp Rendler, William J. Torres Bobadilla2026-06-25
⚛️ high-energy experiments

Lepton number violation at hadron colliders via pseudo-Dirac heavy neutral leptons

This paper demonstrates that damped heavy neutrino-antineutrino oscillations significantly alleviate the suppression of lepton number violation in symmetry-protected pseudo-Dirac heavy neutral leptons at hadron colliders, while showing that combining lepton-number-blind and lepton-number-violating searches can distinguish these models from the double-Majorana limit despite the sensitivity challenges posed by small mass splittings.

Stefan Antusch, Jan Hajer, Bruno M. S. Oliveira2026-06-25
⚛️ high-energy theory

Non-invertible symmetries in the axiverse, and the imaginary wormholes

This paper investigates the invertible and non-invertible generalized symmetries in four-dimensional axiverse effective field theories, demonstrating how quantum-gravitational effects like wormholes and the Imaginary Distance Bound break non-invertible axion shift symmetries and, in N=1 models, induce towers of BPS instantons that generate infinite superpotential terms.

Daniele Licciardello, Luca Martucci2026-06-25
⚛️ lattice

Exponential speedup in quantum simulation of Kogut-Susskind Hamiltonian via orbifold lattice

This paper demonstrates that the Kogut-Susskind Hamiltonian emerges as the infinite scalar mass limit of the more efficient orbifold lattice formulation, thereby resolving implementation challenges and enabling digital quantum simulations of SU(NN) Yang-Mills theories with exponential speedup over classical and prior quantum methods.

Georg Bergner, Masanori Hanada, Emanuele Mendicelli2026-06-24
⚛️ high-energy theory

Cosmological preference for a positive neutrino mass at 2.7σ\sigma: A joint analysis of DESI DR2, DESY5, and DESY1 data

By performing a joint analysis of DESI DR2, CMB, DESY5 supernova, and DESY1 weak lensing data within a dynamical dark energy framework, this study reports a high-confidence 2.7σ2.7\sigma detection of a positive total neutrino mass of 0.0980.037+0.016eV0.098^{+0.016}_{-0.037}\,\mathrm{eV}, driven by DESI's preference for evolving dark energy and the inclusion of free effective neutrino species and weak lensing constraints.

Guo-Hong Du, Tian-Nuo Li, Peng-Ju Wu, Jing-Fei Zhang, Xin Zhang2026-06-24