hep-th papers | Gist.Science

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.

Creation of spin-3/2 dark matter via cosmological gravitational particle production

This paper investigates the cosmological gravitational production of stable spin-3/2 particles, termed "raritrons," demonstrating that their ability to constitute dark matter depends critically on the mass hierarchy relative to the inflationary Hubble scale, which governs the sound speed of the longitudinal mode and can lead to significant enhancements in particle production, particularly for lighter masses or time-dependent mass scenarios.

Edward W. Kolb, Andrew J. Long, Evan McDonough, Jingyuan Wang2026-04-21⚛️ hep-ph

The Maximal Entanglement Limit in Statistical and High Energy Physics

This paper proposes that quantum entanglement serves as a unifying foundation for statistical and high-energy physics, arguing that systems naturally evolve toward a Maximal Entanglement Limit where thermalization and probabilistic behaviors emerge from the geometry of high-dimensional Hilbert spaces without requiring ergodicity or classical randomness.

Dmitri E. Kharzeev2026-04-21⚛️ nucl-ex

Resumming Scattering Amplitudes for Waveforms

This paper introduces a non-perturbative formalism inspired by Feshbach's projector method to compute 5-point scattering amplitudes and derive gravitational waveforms for arbitrary two-body trajectories by relating effective emission potentials to perturbative amplitudes and applying the KMOC framework.

Katsuki Aoki, Andrea Cristofoli2026-04-21⚛️ hep-th

AI--Assisted Exploration: DHOST Theories without Quantum Ghosts

This paper resolves the tension between higher-derivative quantum corrections and Ostrogradsky ghost instabilities in DHOST theories by proving that the algebraic conditions derived from gauge symmetry invariance are mathematically identical to the dynamical constraints required for Hamiltonian stability, thereby establishing symmetry principles as a robust tool for constructing ghost-free gravitational effective field theories.

Ginevra Braga, Raul Jimenez, Sabino Matarrese2026-04-21🔭 astro-ph

Effective Trace Framework for Self-Similar Casimir Systems

This paper establishes a unified effective framework that decouples rigorous mathematical bounds from phenomenological models to describe the vacuum trace in self-similar Casimir systems, demonstrating that the integrated vacuum trace is proportional to the logarithmic running of a scale-dependent Casimir coefficient while distinguishing this macroscopic backreaction from local trace anomalies.

Goren Gordon2026-04-21⚛️ quant-ph

Quasinormal modes of the generalized JMN naked singularity using exact WKB analysis

This paper employs exact WKB analysis to demonstrate that the bow-shaped deformation of Stokes curves in the complex radial plane serves as a unique topological signature of the generalized JMN naked singularity, distinguishing it from black hole spacetimes by revealing a logarithmic branch-point singularity at the origin.

Aryansh Saxena, Suresh C. Jaryal, K. K. Sharma2026-04-21⚛️ gr-qc

Generalized relative locality and causal sets

This paper introduces a novel, coordinate-independent framework for phenomenological quantum gravity that utilizes a dual spacetime structure—combining an observer-independent smooth manifold with an observer-dependent discrete causal set—to demonstrate that relative locality arises generally regardless of momentum-space curvature while preserving manifest causality and enabling applications to cosmology.

Andrea Bevilacqua, Alice Boldrin2026-04-21⚛️ gr-qc

Refined 3D index

This paper introduces a refined 3D index for 3-manifolds, derived from the superconformal index of associated $\mathcal{N}=2$ gauge theories with enhanced flavor symmetries, which serves as a strictly stronger invariant capable of distinguishing more 3-manifolds and IR phases than the original index while providing an explicit computational formula and tool.

Dongmin Gang, Kibok Jeong, Taeyoon Kim, Soochang Lee2026-04-21⚛️ hep-th

Electromagnetic Wightman functions and vacuum densities for a brane intersecting the AdS boundary

This paper investigates the electromagnetic vacuum characteristics induced by a brane intersecting the AdS boundary under perfect electric and magnetic boundary conditions, deriving explicit expressions for Wightman functions and demonstrating that the resulting vacuum energy density and stress components exhibit distinct sign behaviors and non-vanishing properties unique to the AdS spacetime geometry.

A. A. Saharian, R. M. Avagyan, V. F. Manukyan2026-04-21⚛️ hep-th

Adiabatic continuity in a partially reduced twisted Eguchi-Kawai model with one adjoint Dirac fermion

This paper provides numerical evidence from a partially reduced twisted Eguchi-Kawai model that the confined phase of large- $N$ $SU(N)$ gauge theory with one adjoint Dirac fermion persists under spatial compactification with periodic boundary conditions, supporting an adiabatic continuity scenario between large and small circles, whereas antiperiodic boundary conditions induce a clear deconfinement transition.

Yudai Hamada, Tatsuhiro Misumi2026-04-21⚛️ hep-lat

← Previous Next →