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.

⚛️ high-energy theory

Schwinger-Keldysh field theory for operator Rényi entropy and entanglement growth in non-interacting systems with sub-ballistic transports

This paper develops a unified Schwinger-Keldysh field theory framework to characterize operator growth and entanglement dynamics in non-interacting disordered systems, demonstrating how subsystem operator Rényi entropy serves as a state-independent probe that directly links transport behaviors—ranging from ballistic and anomalous diffusion to localization—to the generation of entanglement.

Priesh Roy, Sumilan Banerjee2026-02-27

⚛️ high-energy theory

Self-Dual Gauge Fields from Superstring Field Theory

This paper derives a novel action for two decoupled self-dual gauge fields from a new superstring field theory, which features non-standard couplings to three metrics, exhibits two spin-two gauge invariances with diffeomorphisms arising from their diagonal subgroup, and reduces to Sen's theory in a specific limit.

Chris Hull2026-02-27

⚛️ high-energy theory

Three-Dimensional Modified Klein--Gordon Oscillator in Standard and Generalized Doubly Special Relativity

This paper derives the exact analytic energy spectra and Planck-suppressed shifts for a three-dimensional Klein--Gordon oscillator under standard Amelino-Camelia and Magueijo-Smolin Doubly Special Relativity frameworks, as well as a generalized first-order expansion, demonstrating how these deformations alter the quantization condition while preserving the system's rotational symmetry and functional eigenstructure.

Abdelmalek Boumali, Nosratollah Jafari2026-02-27

⚛️ phenomenology

ACT-Consistent B-L Higgs Inflation in Supergravity

This paper proposes a renormalizable supersymmetric B-L Higgs inflation model within supergravity that utilizes a fractional shift-symmetric Kähler potential to align with ACT data, simultaneously explaining the MSSM $\mu$ -term and achieving baryogenesis through non-thermal leptogenesis.

C. Pallis2026-02-27

⚛️ nuclear theory

The shape of transverse momentum spectra in hybrid hydrodynamic models

This study reveals that despite a large parameter space in hybrid hydrodynamic models, the shape of scaled transverse momentum spectra exhibits surprisingly limited flexibility and significant tension with momentum-integrated observables, particularly regarding the nucleon width parameter $w$ and bulk viscosity.

Thiago S. Domingues, Fernando G. Gardim, Cicero D. Muncinelli, Andre V. Giannini, Gabriel S. Denicol, Tiago Nunes da Sil (…)2026-02-27

⚛️ high-energy theory

Higher dualities in E11 exceptional field theory

This paper proves the conjecture that eleven-dimensional supergravity admits an E11-invariant formulation with an infinite tower of higher dual fields by explicitly constructing parent actions at the linearised level, demonstrating that the resulting equations constrain Stueckelberg fields to ensure physical equivalence with the original supergravity fields while identifying their role as sources for Labastida tensors.

Guillaume Bossard, Nicolas Boulanger, Josh O'Connor2026-02-27

⚛️ lattice

Confined and Deconfined Phases of Qubit Regularized Lattice Gauge Theories

This paper introduces sign-problem-free qubit-regularized lattice gauge theories in the monomer–dimer–tensor-network basis that successfully reproduce the confined and deconfined phases and universality classes of conventional SU(N) theories, suggesting a viable nonperturbative pathway to defining continuum limits for Yang–Mills theory.

Shailesh Chandrasekharan2026-02-27

⚛️ general relativity

Quantum corrected thermodynamics and horizon quantization of the Reissner--Nordström black hole

This paper establishes a unified semiclassical framework for the Reissner--Nordström black hole using Misner--Sharp--Hernandez mass quantization, which yields discrete mass spectra and Planck-scale corrections to thermodynamics that are encoded into a quantum-deformed geometry exhibiting modified surface gravities, stabilized inner horizons, and subtle shifts in observational signatures.

S. Jalalzadeh, H. Moradpour2026-02-27

⚛️ lattice

Generalization of lattice Dirac operator index

This paper presents a comprehensive lattice formulation of Dirac operator indices using $K$ -theory and spectral flow, which overcomes the limitations of the overlap Dirac operator by enabling applications to manifolds with curved boundaries and defining mod-2 indices in both even and odd dimensions.

Shoto Aoki, Hajime Fujita, Hidenori Fukaya, Mikio Furuta, Shinichiroh Matsuo, Tetsuya Onogi, Satoshi Yamaguchi2026-02-27

⚛️ lattice

Metastable confinement in Rydberg lattice gauge theories

This paper reports the emergence of metastable confinement and resonant string breaking in U(1) lattice gauge theories simulated by Rydberg atom arrays, demonstrating how the competition between string tension and four-Fermi coupling, along with Floquet-driven sideband resonances, enables controlled melting of initial string states.

Yaohua Li, Devendra Singh Bhakuni, Yong-Chun Liu, Marcello Dalmonte2026-02-27

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