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

Axion Quality Problem: Keep Calm and Baryon

This paper proposes a high-quality axion model where the axion arises as a pseudo-Nambu-Goldstone boson of baryon number symmetry in a composite sector (such as SQCD with Nc=NfN_c=N_f), naturally suppressing dangerous symmetry-breaking operators due to the high dimension of the baryon operator while generating the required coupling to gluons through flavor symmetry anomalies.

Prateek Agrawal, Anson Hook, Vazha Loladze, Mario Reig2026-06-18
⚛️ high-energy theory

Domain Wall formation from Z2Z_2 spontaneous symmetry breaking/restoration in Scalar-Einstein-Gauss-Bonnet theory

This study investigates domain wall formation driven by Z2Z_2 spontaneous symmetry breaking in Scalar-Einstein-Gauss-Bonnet gravity, finding that while static walls can exist in de Sitter space, cosmic expansion causes their dissolution, ultimately ruling out the generation of observable primordial black holes or large-amplitude stochastic gravitational waves from this mechanism.

Maxim Krasnov, Daulet Berkimbayev, Andrea Addazi, Yermek Aldabergenov, Maxim Khlopov2026-06-18
⚛️ high-energy theory

Expansion formula of one-loop Einstein-Yang-Mills integrand

This paper establishes an expansion formula for one-loop Einstein-Yang-Mills integrands with a gluon loop in terms of conventional one-loop Yang-Mills integrands by utilizing a two-step expansion strategy through tree-level amplitudes, demonstrating that the resulting kinematic coefficients match those of Yang-Mills-scalar theories and thereby providing a foundation for constructing one-loop BCJ numerators.

Yi-Jian Du, Chongsi Xie2026-06-18
⚛️ lattice

Ground state preparation of random all-to-all Hamiltonians using ADAPT-VQE

This paper demonstrates that the TETRIS-ADAPT-VQE algorithm can achieve high-fidelity ground state preparation for random all-to-all Hamiltonians like the SK and SYK models, though it remains efficient only for the SK model while failing to scale efficiently for dense or moderately sparse SYK models.

Sabhyata Gupta, Bharath Sambasivam, Sophia E. Economou, Edwin Barnes, Alexander F. Kemper, Raghav G. Jha2026-06-18