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.

Pathways to Real Composite Operators from Non-Hermitian Fermions

This paper demonstrates that in a 3+13+1-dimensional BRST-invariant field theory featuring non-Hermitian fermions with complex conjugate poles, the one-loop contribution to the two-point function of the composite operator ϕϕ\phi^{\dagger}\phi yields a real result for real external momentum due to the pairing of complex conjugate terms, thereby supporting the theory's renormalizability.

V. E. R. Lemes, D. G. Tedesco2026-06-09⚛️ hep-th

A note on conserved worldsheet supercharges in heterotic pure spinor superstring

This paper investigates conserved worldsheet charges associated with spacetime supersymmetry in heterotic pure-spinor superstrings on curved ten-dimensional superspace backgrounds, deriving covariant superspace constraints that reproduce standard supersymmetry generators in flat space and characterize global supersymmetry in curved space via a normalizable spinor superfield.

Osvaldo Chandia, Brenno Carlini Vallilo2026-06-09⚛️ hep-th

A Numerical Study of Phase-Dependent Kink-Kink Collisions in the Complex Sine-Gordon Model

This paper presents a numerical study of complex kink-kink collisions in the complex sine-Gordon model, revealing how relative phase and initial velocity govern diverse dynamical outcomes—including critical speeds, radiative emissions, and bound state formations—while uncovering energy discontinuities that mark transition thresholds in this non-integrable system.

Mohammad Mohammadi, Farnaz Eizadbaksh, Vahideh Bagheri2026-06-09⚛️ hep-th

Microscopic universal theory of symmetry-enriched topological quantum spin liquids

This paper presents a comprehensive microscopic universal theory for symmetry-enriched topological quantum spin liquids that utilizes measurable microscopical quantities to characterize their universal properties, establishes a precise crystalline equivalence principle via a bijective map between lattice and internal symmetry data, and validates the framework through demonstrations on various quantum hardware platforms.

Yingcheng Li, Liujun Zou2026-06-09🔢 math-ph

Relativistic Effects in Spin Correlations Induced by QED Scattering and Wigner Rotations

This paper investigates how relativistic effects, specifically Wigner rotations and nonrelativistic dipole-dipole interactions, generate and modify spin correlations and quantum coherence in Møller scattering and related processes, ultimately demonstrating that final spin states encode scattering information and resolving discrepancies in inelastic electron-positron scattering.

Juan D. Fonseca, B. Hiller, I. G. da Paz, M. Sampaio2026-06-09⚛️ hep-ph

Post-Newtonian analysis of the quantum signatures of gravity

This paper extends a previous quantum information-based analysis of gravity by incorporating leading-order post-Newtonian corrections to a Bose-Einstein condensate detector model, demonstrating that while these relativistic effects slightly dampen the signal-to-noise ratio, non-Gaussianity remains a unique signature of quantum gravity that can be isolated from electromagnetic interactions via Feshbach resonances.

Tuhin Chatterjee, Soham Sen, Sunandan Gangopadhyay2026-06-09⚛️ hep-th