⚛️ Category

hep-th

4271 papers

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.

⚛️ high-energy theory

Timelike Entanglement from Spacetime Density Matrices: A Lattice Realization

This paper establishes a microscopic lattice foundation for timelike entanglement in quantum field theory by extending Gaussian diagonalization to non-Hermitian spacetime density matrices, thereby determining their complete spectrum and validating the identification of Rényi moments with Lorentzian branch-point twist-operator correlation functions across various causal regimes and boundary conditions.

Hao-yu Wang, Wu-zhong Guo2026-09-11
⚛️ high-energy theory

Landau-Ginzburg description of an exceptional N=1{\mathcal N}=1 minimal model

This paper proposes and validates a Landau-Ginzburg description of the exceptional m=12m=12 N=1\mathcal N=1 superconformal minimal model by identifying it as a weakly coupled infrared fixed point of a specific cubic superpotential theory, where supersymmetry emerges and the calculated operator dimensions agree with the expected conformal data.

Yu Nakayama, Andrei Katsevich, Igor R. Klebanov, Zimo Sun2026-09-11
⚛️ high-energy theory

Detecting one-dimensional bosonic SPT phases via twisted entropic order parameter

This paper introduces a "twisted entropic order parameter," a refined diagnostic tool utilizing ancilla degrees of freedom to detect one-dimensional bosonic symmetry-protected topological (SPT) phases from reduced density matrices, thereby extending the capabilities of entanglement asymmetry beyond traditional Landau symmetry-breaking frameworks.

Kosei Fujiki, Tsubasa Oishi, Soichiro Shimamori2026-09-11
⚛️ general relativity

Constraining Modified Mass-to-Horizon Cosmology Through Primordial Inflationary Observables

This paper investigates slow-roll inflation within a modified cosmological framework based on a generalized mass-to-horizon relation, finding that while power-law potentials fail to meet current CMB constraints, Starobinsky inflation provides a sensitive probe that imposes a stringent bound of 0.960≲n≲1.0400.960 \lesssim n \lesssim 1.040 on the scaling parameter nn through scalar power-spectrum normalization.

A. Sheykhi, G. G. Luciano, A. Benkrane2026-09-11
⚛️ phenomenology

Higgsino dark matter in the Starobinsky supergravity with the MSSM in light of the LUX-ZEPLIN event

This paper proposes a nearly pure 1 TeV higgsino dark matter candidate within the Minimal Supersymmetric Standard Model coupled to Starobinsky supergravity, demonstrating that the model's predicted Higgs boson mass aligns with experimental observations for bino-induced mass splittings while excluding wino-induced scenarios, all in light of the recent LUX-ZEPLIN event.

Daniel Frolovsky, Sergei V. Ketov2026-09-11
⚛️ general relativity

Cosmological Evolution of Primordial Black Holes: UV/IR Decoupling and the KM3NeT 220 PeV Neutrino Anomaly

This paper proposes that the 220 PeV neutrino event detected by KM3NeT originates from the terminal evaporation of a Primordial Black Hole, demonstrating that embedding the black hole in a cosmological McVittie spacetime reconciles early-universe accretion dynamics with today's standard Schwarzschild thermodynamics to explain the observed high-energy flux while satisfying isotropic background constraints.

Debdatta Dey (IIT Bombay), Tausif Parvez (IIT Bombay), S. Shankaranarayanan (IIT Bombay)2026-09-11
⚛️ general relativity

Signatures of charged rotating regular black holes: quasinormal modes, grey-body factors and shadows

This paper constructs rotating counterparts of the Ayón–Beato–García and Balart–Panotopoulos–Rincón regular black holes to analyze their astrophysical signatures, finding that while the rotating BPR model closely mimics the Kerr–Newman black hole, the rotating ABG geometry exhibits distinct quasinormal modes, grey-body factors, and shadow profiles that could be distinguished using gravitational wave and Event Horizon Telescope observations.

Abhisek Barman Maji (Indian Institute of Technology Kharagpur, India)2026-09-11