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In this work, starting by simple, approximate (quasi-classical) methods presented in our previous works, we suggest a simple determination of the (logarithmic) corrections of (Schwarzschild) black hole entropy "without knowing the details…

General Relativity and Quantum Cosmology · Physics 2008-10-07 Vladan Pankovic , Simo Ciganovic , Jovan Ivanovic

Using a Hamiltonian approach, we introduce black hole entropy for Kerr-AdS spacetimes with torsion as the canonical charge on horizon. In spite of a completely different geometric setting with respect to GR, the resulting thermodynamic…

General Relativity and Quantum Cosmology · Physics 2020-09-23 Milutin Blagojević , Branislav Cvetković

Quantum fluctuation consequences have significant role in high-energy physics. These fluctuation often regarded as a correction of the infrared (IR) limit. Such correction contribute to the high-energy limit of thermodynamical quantities…

General Relativity and Quantum Cosmology · Physics 2020-08-26 Abdul Jawad

Using the Sharma-Mittal entropy, we study some properties of the Schwarzschild and Schwarzschild-de Sitter black holes. The results are compared with those obtained by attributing the Bekenstein entropy bound to the mentioned black holes.…

General Physics · Physics 2019-07-31 S. Ghaffari , H. Moradpour , A. H. Ziaie , F. Asgharian , F. Feleppa , M. Tavayef

Information entropies associated with the energy density in position and momentum spaces are build for an anti-de Sitter (AdS) black hole. These quantities, that satisfy an entropic uncertainty relation, vary with the temperature. The…

High Energy Physics - Theory · Physics 2019-09-19 Nelson R. F. Braga

We examine the Euclidean action approach, as well as that of Wald, to the entropy of black holes in asymptotically $AdS$ spaces. From the point of view of holography these two approaches are somewhat complementary in spirit and it is not…

High Energy Physics - Theory · Physics 2008-11-26 Suvankar Dutta , Rajesh Gopakumar

The evolution of evaporating charged black holes is complicated to model in general, but is nevertheless important since the hints to the Information Loss Paradox and its recent firewall incarnation may lie in understanding more generic…

General Relativity and Quantum Cosmology · Physics 2014-10-21 Yen Chin Ong , Pisin Chen

In~\cite{Johnson:2019mdp}, Clifford put forward that the specific heat at constant volume $C_{V}$ is always negetive for the super-entropy black hole. Later in~\cite{Cong:2019bud}, Robert et al. found $C_{V}>0$ in certain region for the…

General Relativity and Quantum Cosmology · Physics 2023-05-04 Yiqian He , Benrong Mu

Kerr-Newman de Sitter (KNdS) spacetimes have a rich thermodynamic structure that involves multiple horizons, and so differs in key respects from asymptotically flat or AdS black holes. In this paper, we show that certain features of KNdS…

High Energy Physics - Theory · Physics 2023-11-15 Vivek Chakrabhavi , Muldrow Etheredge , Yue Qiu , Jennie Traschen

A large AdS Schwarzschild black hole can be approximated by an AdS planar black hole. However, the temperature of a planar black hole is not well defined due to the translational invariance of the horizon. We propose to fix this…

High Energy Physics - Theory · Physics 2022-11-08 Neven Bilic , Julio C. Fabris

Based on the consideration that the black hole horizon and the cosmological horizon of Kerr-de Sitter black hole are not independent each other, we conjecture the total entropy of the system should have an extra term contributed from the…

General Relativity and Quantum Cosmology · Physics 2018-03-26 Huai-Fan Li , Meng-Sen Ma , Li-Chun Zhang , Ren Zhao

In this article we will discuss a Lorentzian sector calculation of the entropy of a minimally coupled scalar field in the Kerr black hole background. We will use the brick wall model of G.'t Hooft. In the Kerr black hole, complications…

General Relativity and Quantum Cosmology · Physics 2023-06-21 Kaushik Ghosh

Christodoulou and Rovelli have shown that the maximal interior volume of a Schwarzschild black hole linearly grows with time. Recently, their conclusion has been extended to the Reissner{-}Nordstr$\ddot{\text{o}}$m and Kerr black holes.…

General Relativity and Quantum Cosmology · Physics 2018-10-24 Xin-Yang Wang , Jie Jiang , Wen-Biao Liu

The calculation of conserved charges of black holes is a rich problem, for which many methods are known. Until recently, there was some controversy on the proper definition of conserved charges in asymptotically anti-de Sitter (AdS) spaces…

General Relativity and Quantum Cosmology · Physics 2008-12-18 Ella Jamsin

A black hole considered as a part of a thermodynamical system possesses the Bekenstein-Hawking entropy $S_H =A_H /(4l_{\mbox{\scriptsize{P}}}^2)$, where $A_H$ is the area of a black hole surface and $l_{\,\mbox{\scriptsize{P}}}$ is the…

General Relativity and Quantum Cosmology · Physics 2011-05-05 Valeri P. Frolov

We have already derived the Criteria for thermal stability of charged rotating black holes in any dimension , for horizon areas that are large relative to the Planck area (in these dimensions). The derivation is done by using results of…

General Relativity and Quantum Cosmology · Physics 2016-08-31 Aloke Kumar Sinha

The low-temperature thermodynamics of near-extremal rotating black holes has recently been revisited to incorporate one-loop contributions that are dominant in this regime. We discuss these quantum corrections to the gravitational path…

High Energy Physics - Theory · Physics 2024-01-31 Sabyasachi Maulik , Leopoldo A. Pando Zayas , Augniva Ray , Jingchao Zhang

Motivated by the recent studies of the novel asymptotically global AdS$_4$ black hole with deforming horizon, we consider the action of Einstein-Maxwell gravity in AdS spacetime and construct the charged deforming AdS black holes with…

High Energy Physics - Theory · Physics 2020-08-26 Tong-Tong Hu , Shuo Sun , Hong-Bo Li , Yong-Qiang Wang

We consider the quasilocal thermodynamics of rotating black holes in asymptotically flat and asymptotically anti de Sitter spacetimes. Using the minimal number of intrinsic boundary counterterms inspired by the AdS/CFT correspondence, we…

High Energy Physics - Theory · Physics 2009-11-07 M. H. Dehghani , R. B. Mann

We study the stability of charged rotating black holes in a consistent truncation of Type $IIB$ Supergravity on $AdS_5 \times S^5$ that degenerate to extremal black holes with zero entropy. These black holes have scaling properties between…

High Energy Physics - Theory · Physics 2015-06-12 Micha Berkooz , Anna Frishman , Amir Zait