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

Relativistic Dissipative Magnetohydrodynamics from the Boltzmann equation for 2-particle species gas

This paper derives relativistic dissipative magnetohydrodynamic equations from the Boltzmann equation for a two-species gas, revealing that strong magnetic fields cause the shear stress tensor to split into three distinct dynamical components that exhibit oscillatory behavior in Bjorken flow, a phenomenon unaccounted for by standard Israel-Stewart theories.

Khwahish Kushwah, Gabriel Silveria Denicol2026-02-25
⚛️ high-energy theory

The AdS Veneziano amplitude at small curvature

This paper computes the AdS Veneziano amplitude for type IIB gluon scattering in AdS5×S3AdS_5 \times S^3 to all orders in α\alpha' within a small curvature expansion by combining dispersion relations, worldsheet integral ansätze, and supersymmetric localization, thereby fully fixing the first curvature correction and determining the unprotected D4F4D^4F^4 term at finite curvature.

Luis F. Alday, Shai M. Chester, Tobias Hansen, De-liang Zhong2026-02-24
⚛️ general relativity

Effective field theory of coupled dark energy and dark matter

This paper formulates an effective field theory for coupled dark energy and dark matter by integrating vector-tensor and non-relativistic fluid sectors, deriving linear perturbation equations and stability conditions, and demonstrating that energy-momentum transfers can reduce the effective gravitational coupling of dark matter at low redshifts.

Katsuki Aoki, Jose Beltrán Jiménez, Masroor C. Pookkillath, Shinji Tsujikawa2026-02-24
⚛️ general relativity

Null infinity as an inverted extremal horizon: Matching an infinite set of conserved quantities for gravitational perturbations

This paper establishes a geometric duality between null infinity and extremal horizons via spatial inversion, demonstrating that this mapping creates a one-to-one correspondence between Newman-Penrose conserved quantities at infinity and a newly derived tower of exactly conserved near-horizon gravitational charges, even for non-conformally isometric extremal Kerr-Newman black holes.

Shreyansh Agrawal, Panagiotis Charalambous, Laura Donnay2026-02-24
⚛️ high-energy theory

Convergent perturbative series via finite path integral limits: application to energy at strong coupling of the anharmonic oscillator

This paper demonstrates that imposing finite path integral limits (equivalent to infinite potential walls) transforms the divergent perturbative series of anharmonic oscillators into an absolutely convergent series, enabling highly accurate calculations of ground state energies even at strong coupling where traditional methods fail.

Ariel Edery2026-02-24
🔢 mathematics

Plabic Tangles and Cluster Promotion Maps

Inspired by BCFW recurrence, this paper introduces plabic tangles and mm-vector-relation configurations to define promotion maps between Grassmannian products, conjecturing and proving that these maps are quasi-cluster homomorphisms with significant implications for the amplituhedron's geometry and scattering amplitudes in planar N=4\mathcal{N}=4 super Yang-Mills theory.

Chaim Even-Zohar, Matteo Parisi, Melissa Sherman-Bennett, Ran Tessler, Lauren Williams2026-02-24