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.

⚛️ phenomenology

Determining the Spin-Analyzing Powers via Invariants of the Spin Correlation Matrices and Probing the Bell Non-Locality at the Lepton Colliders

This paper establishes that the trace of the spin correlation matrix is a basis-invariant quantity for two-fermion production via single mediator exchange at lepton colliders, enabling the determination of spin-analyzing powers, the reconstruction of spin correlations to probe Bell non-locality (specifically in $\Lambda \bar{\Lambda}$ production at BESIII), and the exploration of new physics beyond the Standard Model.

Dianwei Wang, Xiqing Hao, Liwei Liu, Lina Wu, Tianjun Li2026-05-14

⚛️ high-energy theory

Quantum spacetime and quantum fluctuations in the IKKT model at weak coupling

This paper demonstrates that in the weak coupling regime of the IKKT model, quantum fluctuations are negligible compared to noncommutativity scales, thereby validating the emergence of semi-classical 3+1-dimensional geometry and gravity from specific matrix vacua.

Harold C. Steinacker2026-05-14✓ Author reviewed ⓘ

⚛️ high-energy theory

What does it mean to have a quantum gravitational theory of de Sitter Space?

The paper argues that while a finite-dimensional quantum model of de Sitter space is inherently ambiguous due to measurement limitations, a precise mathematical description of our universe might still be achievable if it can be embedded within a sequence of models converging to a unique superstring theory in asymptotically flat space.

Tom Banks2026-05-14✓ Author reviewed ⓘ

⚛️ general relativity

Cosmological horizons in regular bouncing backgrounds

This paper challenges the conventional wisdom that decelerated expansion precludes event horizons and accelerated expansion precludes particle horizons by demonstrating, through regular bouncing cosmological models, that the existence of these non-local horizons depends on the spacetime's complete past and future history rather than just its instantaneous expansion phase.

M. Gasperini2026-05-14

⚛️ high-energy theory

Before the Bang: Wormholes at the Dawn of the Universe

This paper argues that Euclidean wormholes offer a physically rich and holographically consistent alternative to the Hartle-Hawking no-boundary proposal for defining the Universe's initial quantum state, successfully expanding the semiclassical landscape of initial conditions while resolving key issues plaguing earlier models.

Panos Betzios, Paul Ghiringhelli, Ioannis D. Gialamas, Olga Papadoulaki2026-05-14

⚛️ high-energy theory

"Metric-affine-like" generalization of YM (mal-YM): detailed classical consideration

This paper provides a detailed classical analysis of a "metric-affine-like" generalization of Yang-Mills theory (mal-YM) where the connection is not Hermitian-compatible, introducing non-trivially interacting fields that form a non-Abelian Stückelberg theory which becomes massive via spontaneous $GL(n,\mathbb{C}) \to U(n)$ symmetry breaking and recovers standard Yang-Mills theory in the infinite mass limit.

Władysław Wachowski2026-05-14

🔭 astrophysics

Gravitational lens on a static optical constant-curvature background: Its application to Weyl gravity model

This paper extends the optical metric method for gravitational lensing to a static optical constant-curvature (SOCC) background, demonstrating that the exact lens equation retains a unified trigonometric form and successfully resolves the divergence of the light deflection angle in the zero-mass limit of Weyl gravity's Mannheim-Kazanas solution by properly incorporating long-distance curvature effects.

Keita Takizawa, Hideki Asada2026-05-13

⚛️ high-energy theory

Non-interacting holographic dark energy with Torsion via Hubble Radius

This paper demonstrates that incorporating a time-dependent torsion scalar into a non-interacting holographic dark energy model with the Hubble radius as an infrared cut-off successfully drives cosmic acceleration and yields an equation of state distinct from the cosmological constant, thereby resolving limitations found in earlier interacting models.

Yongjun Yun, Jungjai Lee2026-05-13✓ Author reviewed ⓘ

⚛️ high-energy theory

Bubbling wormholes and matrix models

This paper proposes that sums over gauge group representations of half-BPS Wilson loops in multiple copies of $U(N)$ $\mathcal{N}=4$ super Yang-Mills create entangled states dual to "bubbling wormhole" geometries—multi-covers of AdS $_5 \times S^5$ with intersecting boundary spheres—by correlating matrix model eigenvalues in a manner analogous to the thermofield double state.

Panos Betzios, Ji Hoon Lee, Olga Papadoulaki, Yanjun Zhou2026-05-13

⚛️ high-energy theory

Magnetized dynamical black holes

This paper presents a novel exact solution to the Einstein-scalar-Maxwell equations describing a dynamical black hole immersed in a time-dependent electromagnetic field, which generalizes the Fisher-Janis-Newman-Winicour solution within the Fonarev framework and demonstrates how time dependence can cloak curvature singularities that would otherwise be naked in stationary limits.

Jibril Ben Achour, Adolfo Cisterna, Amaro Díaz, Keanu Müller2026-05-13

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