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.

Mapping the transverse spin sum rule in position space

This paper utilizes a quantum phase-space formalism to derive and verify the relativistic spatial distributions of transverse orbital angular momentum, intrinsic spin, and total angular momentum in the transverse plane for spin-0 and spin-1/2 targets, confirming the transverse spin sum rule and revealing non-trivial angular momentum distributions even for spin-0 systems.

Cédric Lorcé, Asmita Mukherjee, Ravi Singh, Ho-Yeon Won2026-04-10⚛️ nucl-th

2020' Five-Point Function of N=4\mathcal{N}=4 SYM and Stringy Corrections

This paper employs a bootstrap approach combining Mellin amplitude factorization, supersymmetric constraints, and protected observables to compute the first stringy correction to the five-point correlation function of 20' operators in N=4\mathcal{N}=4 super Yang-Mills, leaving only a single undetermined coefficient that is constrained by non-protected CFT data and flat-space limits, while also deriving corrections for related four-point correlators.

Joao Vilas Boas2026-04-10⚛️ hep-th

Heterotic Footprints in Classical Gravity: PM dynamics from On-Shell soft amplitudes at one loop

This paper derives the conservative two-body potential and scattering angle for charged black holes in Einstein-Maxwell-Dilaton theory by expanding one-loop on-shell soft amplitudes in the Post-Minkowskian regime, demonstrating that infrared-finite results consistent with the Lippmann-Schwinger equation successfully track electromagnetic and dilatonic charge effects while reducing smoothly to General Relativity.

Arpan Bhattacharyya, Saptaswa Ghosh, Ankit Mishra, Sounak Pal2026-04-10⚛️ hep-th

Freeze-out and spectral running of primordial gravitational waves in viscous cosmology

This paper investigates how shear viscosity in the post-inflationary universe modifies the propagation of primordial gravitational waves, demonstrating that viscosity induces additional damping and spectral running—such as a blue tilt from freeze-out in the electron-photon-baryon plasma—thereby altering the gravitational wave energy density spectrum by approximately 10310^{-3}.

Giuseppe Fanizza, Eliseo Pavone, Luigi Tedesco2026-04-10⚛️ gr-qc

The State-Operator Clifford Compatibility: A Real Algebraic Framework for Quantum Information

This paper proposes a real, grade-preserving algebraic framework for nn-qubit quantum computation using the tensor product C2,0(R)nC\ell_{2,0}(\mathbb{R})^{\otimes n}, where the bivector J=e12J=e_{12} provides the complex structure and a canonical stabilizer mapping ensures compatibility between Clifford algebra operations and unitary evolution on the Hilbert space.

Kagwe A. Muchane2026-04-10🔢 math-ph