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Based on a recent proposal for the gravitational entropy of free gravitational fields, we investigate the thermodynamic properties of black hole formation through gravitational collapse in the framework of the semitetrad 1+1+2 covariant…

广义相对论与量子宇宙学 · 物理学 2015-03-11 Giovanni Acquaviva , George F. R. Ellis , Rituparno Goswami , Aymen I. M. Hamid

We study static black hole solutions with locally spherical horizons coupled to non-Abelian field in $\mathcal{N}=4$ Chern-Simons AdS$_5$ supergravity. They are governed by three parameters associated to the mass, axial torsion and…

高能物理 - 理论 · 物理学 2021-11-23 Laura Andrianopoli , Gaston Giribet , Darío López Díaz , Olivera Miskovic

In this paper, we investigate the properties of black holes within the framework of multi-fractional theories of gravity, focusing on the effects of q-derivatives and weighted derivatives. These modifications, which introduce…

广义相对论与量子宇宙学 · 物理学 2025-06-03 Reggie C. Pantig

The general parametrization of spherically symmetric and asymptotically flat black-hole spacetimes in arbitrary metric theories of gravity was suggested in [3]. The parametrization is based on the continued fraction expansion in terms of…

广义相对论与量子宇宙学 · 物理学 2022-05-18 R. A. Konoplya , A. Zhidenko

In this paper, we consider quadratic Maxwell invariant as a correction to the Maxwell theory and study thermodynamic behavior of the black holes in Einstein and Gauss-Bonnet gravities. We consider cosmological constant as a thermodynamic…

广义相对论与量子宇宙学 · 物理学 2016-05-25 S. H. Hendi , S. Panahiyan , M. Momennia

Motivated by a new model of nonlinear electrodynamics known as Modified Maxwell (ModMax) theory, an exact analytical solution for black holes is obtained by coupling ModMax nonlinear electrodynamics and $F(R)$ gravity. Then, the effects of…

广义相对论与量子宇宙学 · 物理学 2024-02-26 Behzad Eslam Panah

Using the fact that theories of gravity with asymptotically three-dimensional anti-de Sitter geometries have dual descriptions as two-dimensional conformal field theories (CFTs), we present the first study in field theory of the…

高能物理 - 理论 · 物理学 2020-04-15 Clifford V. Johnson , Victoria L. Martin , Andrew Svesko

We reconsider various C-metric spacetimes describing charged and (slowly) accelerating AdS black holes in different theories of (non-linear) electrodynamics and revisit their thermodynamic properties. Focusing first on the Maxwell theory,…

广义相对论与量子宇宙学 · 物理学 2025-06-18 Tomáš Hale , David Kubizňák , Jana Menšíková , Robert B. Mann , Jiayue Yang

We study the thermal helicity, defined in arXiv:1211.3850, of a conformal field theory with anomalies in the context of AdS$_{2n+1}$/CFT$_{2n}$. To do so, we consider large charged rotating AdS black holes in the…

高能物理 - 理论 · 物理学 2015-06-17 Tatsuo Azeyanagi , R. Loganayagam , Gim Seng Ng , Maria J. Rodriguez

The inclusion of the quantum fluctuations of the metric in the geometric action is a promising avenue for the understanding of the quantum properties of gravity. In this approach the metric is decomposed in the sum of a classical and of a…

广义相对论与量子宇宙学 · 物理学 2021-04-19 Jin-Zhao Yang , Shahab Shahidi , Tiberiu Harko , Shi-Dong Liang

The interior volume of black holes as defined by Christodoulou and Rovelli exhibits many surprising features. For example, it increases with time, even under Hawking evaporation. For some black holes, the interior volume is not even a…

广义相对论与量子宇宙学 · 物理学 2020-10-07 Xiao Yan Chew , Yen Chin Ong

The Bronnikov model of nonlinear electrodynamics is investigated in general relativity. The magnetic black hole is considered and we obtain a solution giving corrections to the Reissner-Nordstr\"{o}m solution. In this model spacetime at…

广义相对论与量子宇宙学 · 物理学 2018-05-24 S. I. Kruglov

We investigate the behavior of the deflection of light rays by charged and rotating AdS black holes using the Gauss-Bonnet formalism. Taking weak field approximations and certain appropriate limits associated with AdS geometries, we compute…

高能物理 - 理论 · 物理学 2022-01-19 A. Belhaj , H. Belmahi , M. Benali

We compute the entanglement entropy of a real massive scalar field near a non-rotating BTZ black hole using Thermo Field Dynamics. Modeling the black hole as a collapsing dust shell in AdS3, we derive the shell trajectory R(t) as seen by a…

广义相对论与量子宇宙学 · 物理学 2026-02-27 W. A. Rojas C. , J. R. Arenas S

The correction of Hawking temperature of Schwarzschild-de Sitter (SdS) black hole is investigated using the generalized Klein-Gordon equation and the generalized Dirac equation by taking the quantum gravity effects into account. We derive…

广义相对论与量子宇宙学 · 物理学 2017-06-07 T. Ibungochouba Singh , I. Ablu Meitei , K. Yugindro Singh

In this work, we study the parameterized black hole solution by applying the Newman-Janis approach and also examine the Hawking temperature. We consider a Lagrangian field equation associated with the generalized uncertainty principle to…

广义相对论与量子宇宙学 · 物理学 2023-03-24 Muhammad Asgher , Anosha Karamat , Rimsha Babar , Riasat Ali

We investigate thermalization process of boosted charged AdS black holes in the Einstein-Maxwell system in the presence of an ionic lattice formed by spatially varying chemical potential. We calculate perturbations of the black holes by the…

高能物理 - 理论 · 物理学 2015-06-17 Akihiro Ishibashi , Kengo Maeda

We provide a new regular black hole solution in $(2+1)$ dimensions with presence of matter fields in the energy momentum tensor, having its core a flat or (A)dS structure. Since the first law of thermodynamics for regular black holes is…

广义相对论与量子宇宙学 · 物理学 2021-11-09 Milko Estrada , Francisco Tello-Ortiz

Novel static black hole solutions with electric and magnetic charges are derived for the class of modified gravities: $f({\cal R})={\cal R}+2\beta\sqrt{{\cal R}}$, with or without a cosmological constant. The new black holes behave…

广义相对论与量子宇宙学 · 物理学 2020-02-14 E. Elizalde , G. G. L. Nashed , S. Nojiri , S. D. Odintsov

We derive new thermodynamic relations for asymptotically planar AdS black hole and soliton solutions. In addition to the ADM mass, these spacetimes are characterized by gravitational tensions in each of the planar spatial directions. We…

高能物理 - 理论 · 物理学 2015-06-15 Basem Mahmoud El-Menoufi , Benjamin Ett , David Kastor , Jennie Traschen