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.

Black hole thermodynamics and KK photon quantum corrections in 2D effective dilaton gravity

This paper demonstrates that a two-dimensional effective dilaton gravity theory derived from four-dimensional Einstein-Maxwell theory successfully reproduces the semiclassical thermodynamic phase structure of charged AdS black holes, while showing that one-loop Kaluza-Klein photon corrections only induce constant shifts in entropy and charge parameters without qualitatively altering this phase structure.

Yoshihiko Abe, Tetsutaro Higaki, Yu Miyauchi2026-06-15⚛️ hep-th

Hydrodynamics of Nonminimal F(a)αβF(a)γλRαγRβλF^{(a)\alpha \beta } F^{(a)\gamma \lambda } R_{\alpha \gamma } R_{\beta \lambda } AdS Black Brane

This paper investigates the hydrodynamic properties of a strongly coupled non-Abelian plasma dual to a four-dimensional AdS black brane with a nonminimal curvature-gauge coupling, demonstrating that this higher-derivative interaction significantly modifies the DC color conductivity and shear viscosity-to-entropy density ratio, potentially violating their respective universal bounds depending on the sign of the coupling constant.

Mehdi Sadeghi2026-06-15⚛️ hep-th

Quantum Entanglement of Bethe States

This paper investigates the bipartite entanglement entropy of Bethe states across various integrable spin chains, systematically identifying the specific solutions that minimize and maximize entanglement, revealing that while the ground state often minimizes entropy in the XXX1/2_{1/2} model, this correspondence breaks down in higher-spin and non-compact chains, and further developing an optimization algorithm to explore maximum entanglement for off-shell states.

Yu Hao, Yunfeng Jiang, Bi-Quan Yang, De-liang Zhong2026-06-15⚛️ hep-th

Dynamical tidal response of neutron stars via scattering amplitudes

This paper establishes a systematic framework within worldline effective field theory to define and compute the dynamical tidal response of neutron stars by matching gravitational-wave scattering amplitudes between the effective theory and full stellar perturbation theory, thereby resolving coordinate ambiguities and recovering key physical features like static limits, resonant behaviors, and dissipative effects.

M. V. S. Saketh, Suprovo Ghosh, Nils Andersson2026-06-15⚛️ gr-qc

On the branes behind scale-separated AdS3_{3} flux vacua

This paper investigates the brane origin of supersymmetric, scale-separated AdS3_3 flux vacua in type IIB orientifold reductions by utilizing effective supergravity and ten-dimensional constructions to identify the underlying D1- and D5-brane configurations and explicitly build interpolating solutions and higher-dimensional intersections that realize these vacua.

Álvaro Arboleya, Adolfo Guarino, Clara Roldán-Domínguez, Giuseppe Sudano2026-06-15⚛️ hep-th

Positive Conserved Quantities in the Klein-Gordon Equation

This paper proposes embedding the Klein-Gordon equation into a pair of coupled first-order equations to demonstrate the existence of two positive conserved quantities, thereby resolving the historical issue of negative probabilities without requiring quantum field theory and suggesting a relativistic framework where particle-antiparticle annihilation does not occur, offering a potential explanation for dark matter.

Robert Lin2026-06-12⚛️ hep-th

Inflationary trispectrum of gauge fields from scalar and tensor exchanges

This paper computes the exact analytical inflationary trispectrum of primordial gauge fields arising from scalar and tensor exchanges in spectator U(1)U(1) models, revealing distinct momentum and angular dependencies that establish hierarchical relations with lower-order correlations and offer novel observational signatures for early-universe tensor interactions.

P. Jishnu Sai, S. R. Haridev, Rajeev Kumar Jain2026-06-12⚛️ hep-th