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.

Searching for emergent spacetime in spin glasses

This paper investigates the emergence of semiclassical spacetime in many-body quantum systems with quenched disorder by computing their spectral functions, finding that the SU(M) Heisenberg model exhibits exponential tails similar to the SYK model and the p-spin model displays infinite quasiparticle excitations, while ultimately proving that such exponential spectral tails preclude low-energy operators from detecting nontrivial bulk causal structures.

Dimitris Saraidaris, Leo Shaposhnik2026-04-21⚛️ hep-th

Evidence of dynamical dark energy found via the DESI DR2 Lyman $\alpha$ forest

This paper analyzes DESI DR2 Lyman- $\alpha$ and galaxy BAO data combined with supernova and CMB observations to find moderate evidence for dynamical dark energy favoring a Quintom-B scenario ( $w_0 > -1, w_a < 0$ ), though the statistical significance of this preference drops to inconclusive levels ( $\lesssim 2\sigma$ ) when Type Ia supernova datasets are included.

Salvatore Capozziello, Himanshu Chaudhary, G. Mustafa, S. K. J. Pacif2026-04-21⚛️ hep-th

Continuous matrix product operators for quantum fields

This paper introduces a lattice-independent ansatz for continuous matrix product operators that preserves the entanglement area law in the continuum and enables the construction of continuous matrix product unitaries beyond quantum cellular automata.

Erickson Tjoa, J. Ignacio Cirac2026-04-21⚛️ hep-lat

Real-time Scattering in \phi^4 Theory using Matrix Product States

This paper demonstrates that uniform matrix product states combined with the time-dependent variational principle can effectively simulate real-time two-particle scattering in (1+1)-dimensional $\phi^4$ theory, revealing distinct elastic and inelastic behaviors across different phases and identifying a dynamical divergence near the critical point as a signature of the closing mass gap.

Bahaa Al Sayegh, Wissam Chemissany2026-04-21⚛️ hep-lat

Entanglement Entropy of a Non-Minimally Coupled Self-Interacting Scalar across a Schwarzschild Horizon at $\mathcal{O}(\alpha)$

This paper computes the first-order correction in quartic coupling to the entanglement entropy of a non-minimally coupled massive scalar across a Schwarzschild horizon, demonstrating that the resulting divergences are renormalized by bulk mass and Newton's constant counterterms while the finite correction vanishes for conformal coupling.

Florin Manea2026-04-21⚛️ gr-qc

Bootstrapping non-unitary CFTs

This paper introduces a unitarity-independent evolutionary algorithm that bootstraps the spectra of general conformal field theories by iteratively optimizing trial spectra to maximize the satisfaction of crossing symmetry, successfully reproducing known minimal models for Virasoro blocks with $c<1$ .

Yu-tin Huang, Shao-Cheng Lee, Henry Liao, Justinas Rumbutis2026-04-21⚛️ hep-th

Novel thermodynamic inequality for rotating AdS black holes

This paper proposes and validates a new thermodynamic inequality, $4\pi J^2/(3MV)<1$ , for rotating Anti-de Sitter black holes across various topologies and dimensions, demonstrating its role in preserving cosmic censorship and its compatibility with the reverse isoperimetric inequality.

Hamid R. Bakhtiarizadeh2026-04-21⚛️ gr-qc

A weakly non-abelian decay channel

This paper investigates non-abelian D-branes in curved AdS space, demonstrating that specific configurations with internal fuzziness can be less self-attractive than their abelian counterparts, thereby enabling new decay channels for vacua that are otherwise stable against abelian domain-wall destabilization.

Vincent Menet, Alessandro Tomasiello2026-04-21⚛️ hep-th

Scalar, vector and tensor fields on $dS_3$ with arbitrary sources: harmonic analysis and antipodal maps

This paper establishes a comprehensive framework for scalar, vector, and tensor fields on three-dimensional de Sitter spacetime by defining their spherical harmonics, explicitly deriving the non-local antipodal relationships between past and future asymptotic data in the presence of arbitrary sources, and proving decomposition theorems that are instrumental for describing interacting four-dimensional asymptotically flat fields.

Geoffrey Compère, Sébastien Robert2026-04-21⚛️ hep-th

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

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