⚛️ Category

hep-th

4400 papers

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.

⚛️ general relativity

Vacuum, ma non troppo: hidden matter distribution in symmetry-transformed electrovacuum spacetimes

This paper demonstrates that two static spacetimes, previously claimed to be vacuum solutions derived from a Schwarzschild--Bertotti--Robinson seed, actually harbor a hidden semi-infinite annular mass distribution on the equatorial plane when analyzed in Weyl coordinates, revealing a coordinate singularity that explains the finite affine parameter of equatorial null geodesics reaching infinity.

Carlos A. R. Herdeiro, João P. A. Novo2026-05-20
⚛️ general relativity

Collective excitations in quantum gravity condensates

This paper applies Bogolyubov theory to group field theory condensates to demonstrate that quantum fluctuations beyond the mean-field regime manifest as collective excitations analogous to phonons, thereby deriving leading corrections to emergent Friedmann cosmology and establishing a controlled link between microscopic quantum gravity and macroscopic spacetime dynamics.

Andrea Calcinari, Adrià Delhom, Daniele Oriti2026-05-20
⚛️ high-energy theory

After the Fluid: Subexponential Decay in AdS4_4

This paper demonstrates that nonlinear perturbations of Schwarzschild-AdS4_4 black branes with real-analytic initial data generically exhibit a robust stretched-exponential decay of boundary observables scaling as exp⁡(−c t5/6)\exp(-c\, t^{5/6}), a universal behavior driven by the large-kk tail of the quasinormal mode spectrum rather than hydrodynamic modes.

John R. V. Crump, Jorge E. Santos2026-05-20
⚛️ high-energy theory

Modular Self-Duality, Symmetrized Relative Entropy, and Bogoliubov--Kubo--Mori Susceptibility in Quantum Field Theory

This paper establishes an operator-algebraic framework extending modular self-duality, symmetrized relative entropy, and Bogoliubov--Kubo--Mori susceptibility from finite-dimensional systems to local type~III von Neumann algebras in quantum field theory, demonstrating that the Hessian of the symmetrized Araki relative entropy at self-dual points defines a susceptibility coefficient explicitly realized in free scalar and chiral U(1)U(1) current models.

Rupak Chatterjee2026-05-20
⚛️ high-energy theory

Thick branes and fermion localization in five-dimensional f(T,TG)f(T,T_G) gravity

This paper investigates five-dimensional thick brane models in f(T,TG)f(T,T_G) modified teleparallel gravity, demonstrating that the torsional Gauss-Bonnet term significantly alters brane structure through splitting and deformation while enabling the localization of chiral fermion zero modes and the emergence of resonant Kaluza-Klein states.

A. R. P. Moreira, F. M. Belchior, Shi-Hai Dong, E. N. Saridakis2026-05-20
⚛️ high-energy theory

Anomalous Hall effect in anisotropic type-II Weyl semimetals

This paper extends the analysis of CPT-odd electromagnetic responses in Weyl semimetals to the overtilted type-II regime, demonstrating that while the axion-like response remains finite across the type-I to type-II transition, it acquires tilt-dependent renormalizations and cutoff-sensitive terms, ultimately yielding a finite, strongly anisotropic anomalous Hall conductivity in WTe2_2 driven by comparable and partially canceling Fermi-sea and Fermi-surface contributions.

R. Martínez von Dossow, A. Martín-Ruiz, Luis F. Urrutia2026-05-20
⚛️ high-energy theory

Planckian dissipation from classical hydrodynamics

This paper demonstrates that the requirement for a quantum system to remain describable by classical hydrodynamics at low temperatures necessitates a finite classical region within the light cone, which in turn forces the effective relaxation rate to be at least Planckian, thereby deriving Planckian scaling of transport coefficients as a consequence of hydrodynamic self-consistency rather than microscopic quantum constraints.

Laura Foini, Jorge Kurchan, Silvia Pappalardi2026-05-20
⚛️ high-energy theory

Large Order Enumerative Geometry, Black Holes and Black Rings

This paper numerically analyzes the large-charge asymptotics of 5D indices, stable pair, and Donaldson-Thomas invariants for hypergeometric Calabi-Yau threefolds using high-genus Gopakumar-Vafa data, revealing precise agreements with black hole and black ring entropies, identifying novel phase transitions in the invariants, and confirming a conjecture by Mariño regarding topological free energies.

Sergey Alexandrov, Albrecht Klemm, Boris Pioline2026-05-20