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.

⚛️ lattice

Symmetry-based theory of Dirac fermions on two-dimensional hyperbolic crystals: Coupling to the spin connection

This paper establishes a symmetry-based framework for Dirac fermions on two-dimensional hyperbolic lattices by incorporating spin-curvature coupling via a discrete spin connection, demonstrating through both continuum theory and numerical simulations that this interaction leads to a robust, nonvanishing low-energy density of states which enhances susceptibility to interaction-driven instabilities.

Ana Djordjević, Marija Dimitrijević Ćirić, Vladimir Juričić2026-07-29

⚛️ high-energy experiments

Gedanken Experiments of Entanglement in Particle Physics: Interactions, Operators and Bell Inequalities in Flavor Space

This paper proposes using Bell-type inequalities as operator-level diagnostics in collider experiments to demonstrate that fundamental Standard Model interactions, when treated as measurement settings for entangled particle pairs, generate non-contextual correlations that violate local realism through their inherent algebraic structure.

Corbin Pacheco (Wayne State University), Nausheen R. Shah (Wayne State University)2026-07-29

⚛️ high-energy theory

Entanglement Entropy and Complexity of Multicomponent Universe from Holography

This paper extends holographic studies of the four-dimensional FLRW universe to realistic multicomponent scenarios by demonstrating that black brane geometry with $p$ -brane gas supports coexisting matter sources, thereby deriving time-dependent expressions for entanglement entropy and volume complexity that correctly reflect the universe's thermal history from radiation dominance to matter or exotic matter dominance.

Ritam Mahanta, Gopinath Guin, Souvik Paul, Sunandan Gangopadhyay2026-07-29

⚛️ general relativity

When inflationary perturbations refuse to classicalise: the role of non-Gaussianity in Wigner negativity

Using the Effective Field Theory of inflation, this paper demonstrates that primordial non-Gaussianities prevent inflationary perturbations from fully classicalizing on super-Hubble scales by generating a non-positive Wigner function with growing interference fringes, thereby proving that quantum effects can persist at late times despite the standard assumption that squeezing ensures classicality.

Aurora Ireland, Vincent Vennin2026-07-29

⚛️ high-energy experiments

Real and Virtual Propagation in Neutrino Oscillations

This paper extends the description of neutrino flavor oscillations to shorter propagation times by deriving an amplitude expression that reveals a threshold for the transition from virtual to real intermediate states, thereby demonstrating that the Jacob--Sachs theorem remains valid with higher accuracy than previously anticipated.

Kenji Nishiwaki, Kin-ya Oda, Juntaro Wada2026-07-29

⚛️ quantum physics

Can a quantum circuit detect the Unruh effect?

This paper proposes and analyzes a practical implementation using superconducting fluxonium circuits to detect the timelike Unruh effect by modulating an excited-state transition frequency to accumulate a geometric phase, achieving a three-order-of-magnitude sensitivity enhancement over traditional detectors.

Pravin Kumar Dahal, Timothy C. Ralph, William J. Munro, Arkady Fedorov, James Q. Quach2026-07-29

🔬 physics

The geometry-first formulation of gauge theory is not equivalent to the symmetry-first one

This paper argues that the geometry-first and symmetry-first formulations of gauge theory are fundamentally inequivalent because the former admits fewer theories, fails to uniquely determine generating structures from principal bundles, and lacks essential surjectivity and fullness in its natural functor to the latter framework.

Henrique Gomes2026-07-29

⚛️ high-energy theory

OPE = QNM

This paper establishes a fundamental connection between the thermal operator product expansion (OPE) and quasinormal modes (QNM) in large- $N$ CFTs by demonstrating their overlapping convergence in the complex time plane, thereby deriving new analytic results for QNM asymptotics, numerical methods to extract low-overtone QNMs from OPE data, and sum rules that enable a new thermal bootstrap program where these two descriptions mutually constrain each other.

Paolo Arnaudo, Cristoforo Iossa, Robin Karlsson, Benjamin Withers2026-07-29

⚛️ high-energy theory

Neural Spectral Bias and Conformal Correlators II: Modular and Annulus Bootstrap

This paper introduces a neural network bootstrap framework that leverages the spectral bias of lightweight feed-forward networks to reconstruct two-dimensional CFT partition functions from sparse spectral data by recasting modular invariance and open/closed duality as crossing symmetry constraints for four-point correlators.

Kausik Ghosh, Sidhaarth Kumar, Vasilis Niarchos, Andreas Stergiou2026-07-29

⚛️ high-energy theory

Kaluza-Klein Perturbation Theory from Exceptional Field Theory

This paper develops a comprehensive perturbation theory for ten and eleven-dimensional supergravities on diverse Kaluza-Klein backgrounds using ${\rm E}_{6(6)}$ exceptional field theory and homotopy transfer techniques to derive gauge-invariant field equations, elucidate the Higgs mechanism for all fields including spin-2, and analyze the spectrum of type IIB supergravity modes around a Kerr-Newman AdS $_5$ black hole.

Camille Eloy, Olaf Hohm, Camilla Lavino, Henning Samtleben, Yehudi Simon2026-07-29

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