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.

Higher-Rank Orthogonal Twists, APS Boundary Conditions, and $O(2)$ -Equivariant Spectral Flow on a Warped Cylinder

This paper derives an explicit blockwise formula for the $RO(O(2))$-valued spectral flow of Dirac operators on a finite warped cylinder with higher-rank orthogonal twists and APS boundary conditions, demonstrating how representation-theoretic information is preserved beyond standard integer-valued spectral flow through the decomposition of moving and stationary blocks under reflection symmetry.

Taro Kimura, Sanchita Sharma2026-06-02🔢 math-ph

Azimuthal decorrelation in diffractive dijet production

This paper calculates the azimuthal angular decorrelation of diffractive dijets in ultra-peripheral heavy-ion, $ep$, and $eA$ collisions using all-order resummation of soft gluon emissions to demonstrate that this observable serves as a promising probe for non-perturbative diffractive transverse momentum-dependent distributions, with numerical predictions provided for LHC, HERA, and the future EIC.

Ding Yu Shao, Yu Shi, Cheng Zhang, Jian Zhou, Ya-jin Zhou2026-06-02⚛️ nucl-th

Hidden $\mathfrak{u}(2,1)$ symmetry and Jordan chains in a resonant ghostly three-dimensional model

This paper investigates a resonant three-dimensional ghostly Hamiltonian model of the Pais-Uhlenbeck oscillator, revealing a hidden $\mathfrak{u}(2,1)$ symmetry that governs its non-diagonalisable Jordan chain structure, tri-Hamiltonian geometry, and the absence of a positive-definite Hamiltonian despite the existence of higher-order symmetries.

Andreas Fring, Ian Marquette2026-06-02🔢 math-ph

Cumulant dynamics in finite-memory diffusion

This paper extends the standard Fickian diffusion model to Maxwell–Cattaneo diffusion to account for finite current-relaxation time, deriving closed evolution equations that reveal how this memory effect suppresses, shifts, and reshapes the non-monotonic behavior of conserved charge cumulants in the quark-gluon plasma.

Navid Abbasi, Xin An, Shanjin Wu2026-06-02⚛️ nucl-th

Off-shell invariants of linearized $4D, \mathcal{N}=2$ supergravity in the harmonic approach

Using the harmonic superspace approach, this paper constructs linearized $\mathcal{N}=2$ supersymmetric curvatures (generalizing scalar, Ricci, and Weyl tensors) expressed through fundamental analytic gauge prepotentials to serve as building blocks for off-shell $4D$ supergravity invariants.

Evgeny Ivanov, Nikita Zaigraev2026-06-01⚛️ gr-qc

Subexponential decay of local correlations from diffusion-limited dephasing

The paper argues that in one-dimensional chaotic quantum systems with conservation laws, local correlations decay subexponentially (as stretched exponentials or slower) due to the coherent persistence of inert "void" regions, a phenomenon that standard hydrodynamics fails to capture and which vanishes under extrinsic dephasing.

Ewan McCulloch, J. Alexander Jacoby, Curt von Keyserlingk, Sarang Gopalakrishnan2026-06-01⚛️ hep-th

Evolving Dark Sector and the Dark Dimension Scenario

This paper proposes a string theory-inspired model where an evolving dark dimension links varying dark energy and dark matter masses through a scalar field, successfully fitting recent DESI and supernova data while naturally explaining apparent phantom behavior and satisfying Swampland and fifth-force constraints.

Alek Bedroya, Georges Obied, Cumrun Vafa, David H. Wu2026-06-01⚛️ gr-qc

Scattering off unstable states

This paper resolves the $t$ -channel singularity problem in scattering involving unstable particles by employing a finite-time formalism that yields analytic results, thereby justifying the treatment of long-lived particles as stable asymptotic states during strong interactions.

Francesco Giacosa, Vanamali Shastry2026-06-01⚛️ nucl-th

On Entropy Bounds for Irrelevant Operators

This paper proposes and tests an entropy-positivity conjecture, derived from black hole thermodynamics, which asserts that leading symmetry-preserving irrelevant deformations of a conformal field theory increase the system's entropy, finding broad agreement across various models while identifying specific cases where the conjecture does not apply.

Lucas Fernández-Sarmiento, Riccardo Penco, Rachel A Rosen2026-06-01⚛️ hep-th

Husain-Kuchař model as the Carrollian limit of the Holst term

This paper demonstrates that the Husain-Kuchař model arises as the Carrollian limit of the Holst term within background-independent field theories and examines the resulting Carrollian symmetry features in its Hamiltonian formulation.

J. Fernando Barbero G., Juan Margalef-Bentabol, Aitor Vicente-Cano, Eduardo J. S. Villaseñor2026-06-01🔢 math-ph

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hep-th

Higher-Rank Orthogonal Twists, APS Boundary Conditions, and O(2)O(2)O(2)-Equivariant Spectral Flow on a Warped Cylinder