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.

The iεi\varepsilon-Prescription for String Amplitudes and Regularized Modular Integrals

This paper establishes that the analytic continuation of one-loop string amplitudes via a string-theoretic iεi\varepsilon-prescription is equivalent to a regularization using generalized exponential integrals, yielding exact expressions for the imaginary and real parts of various open and closed string amplitudes that agree with the Hardy-Ramanujan-Rademacher circle method approach.

Jan Manschot, Zhi-Zhen Wang2026-06-15⚛️ hep-th

Wilson lines with endpoints in 3d CFT

This paper investigates the endpoints of Wilson lines in large-NN bosonic QED3_3 at its critical point by analyzing the stability of infinite lines in the CPN1\mathbb{CP}^{N-1} model, computing the conformal dimension of the lowest-dimension endpoint to first order in N1N^{-1}, and exploring the associated field-strength tensor, state-operator correspondence, and operator product expansion for gluing open lines.

Nabil Iqbal, Navonil Neogi2026-06-15⚛️ hep-th

Towards celestial CFT dual of 4d conformal gravity

This paper computes tree-level celestial operator product expansions in a bosonic sub-sector of Berkovits-Witten conformal supergravity, revealing that while leading soft graviton currents retain standard singularity structures, subleading soft graviton currents acquire corrections consistent with a modified chiral sl(2,R)\mathfrak{sl}(2,\mathbb{R}) current algebra, suggesting the dual celestial CFT preserves a non-trivial bms4\mathfrak{bms}_4 symmetry.

Nirmal Ghorai, Partha Paul, Nemani V. Suryanarayana2026-06-15⚛️ hep-th

Graviton Photoproduction by a Kerr-Newman Black Hole with Worldline EFT

Using worldline effective field theory, this paper presents the first gauge-invariant computation of the long-wavelength graviton photoproduction amplitude by a Kerr-Newman black hole through O(S2)\mathcal{O}(S^2), demonstrating that consistent electromagnetic interactions preserve spin gauge invariance and that the relevant Wilson coefficients are uniquely fixed by matching to the Kerr-Newman multipole moments.

Qinyuan Zheng2026-06-15⚛️ hep-th

Radiative Maxwell Scattering on Slowly Rotating Weakly Charged Kerr-Newman Black Holes

This paper establishes a finite-energy scattering theory for source-free Maxwell fields on slowly rotating, weakly charged Kerr-Newman black holes by decomposing the field into stationary and radiative components and proving uniform boundedness, integrated local energy decay, and asymptotic completeness for the radiative sector through a combination of geometric and analytic techniques.

Bobby Eka Gunara, Mulyanto, Emir Syahreza Fadhilla, Fiki Taufik Akbar2026-06-15⚛️ gr-qc

Non-Markovian Memory-Induced Effects in Quantum Cosmology

This paper proposes a non-Markovian extension of the semiclassical Wheeler-DeWitt framework where causal memory kernels induce effective fractional time evolution, leading to a characteristic k3/4k^{3/4} correction in the primordial power spectrum that primarily impacts high-ll CMB anisotropies and offers potential observational signatures for nonlocal quantum gravitational dynamics.

Aarav Shah, Paulo Moniz, Oem Trivedi, Meet J. Vyas2026-06-15⚛️ gr-qc