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Quantum black holes within the loop quantum gravity (LQG) framework are considered. The number of microscopic states that are consistent with a black hole of a given horizon area $A_0$ are counted and the statistical entropy, as a function…

广义相对论与量子宇宙学 · 物理学 2008-11-26 Alejandro Corichi , Jacobo Diaz-Polo , Enrique Fernandez-Borja

We compute logarithmic corrections to the entropy of rotating extremal black holes using quantum entropy function i.e. Euclidean quantum gravity approach. Our analysis includes five dimensional supersymmetric BMPV black holes in type IIB…

高能物理 - 理论 · 物理学 2015-05-30 Ashoke Sen

We study the noncommutative corrections to the entropy of the Reissner-Nordstr\"{o}m black hole using a $\kappa$-deformed scalar probe within the brick-wall framework. The noncommutativity is encoded in an Abelian Drinfeld twist constructed…

高能物理 - 理论 · 物理学 2023-02-14 Kumar S. Gupta , Tajron Jurić , Anđelo Samsarov , Ivica Smolić

We discuss the thermodynamic limit in the canonical area ensemble used in loop quantum gravity to model quantum black holes. The computation of the thermodynamic limit is the rigorous way to obtain a smooth entropy from the counting entropy…

广义相对论与量子宇宙学 · 物理学 2011-09-27 J. Fernando Barbero G. , Eduardo J. S. Villaseñor

Black holes exist all over our Universe, possessing a very wide range of masses. At the moment, they serve as a probe to test general relativity at astrophysical scales, but in the future they may also give us information about gravity at…

高能物理 - 理论 · 物理学 2025-10-24 Tiago V. Fernandes

The leading quantum-gravitational correction to the black hole entropy is known to be a universal logarithmic term. In this study, we investigate the logarithmic corrections for the black holes in the STU supergravity models, which are a…

高能物理 - 理论 · 物理学 2025-03-26 Sudip Karan , Gurmeet Singh Punia , Surajit Biswas

For analyzing the thermodynamical behavior of two well-known black holes such as RN-AdS black hole with global monopole and $f(R)$ black hole, we consider the higher order logarithmic corrected entropy. We develop various thermodynamical…

广义相对论与量子宇宙学 · 物理学 2018-11-28 M. Umair Shahzad , Abdul Jawad

We study the corrections to the entropy of Einstein-Maxwell dilaton-axion black holes beyond semiclassical approximations. We consider the entropy of the black hole as a state variable and derive these corrections using the exactness…

广义相对论与量子宇宙学 · 物理学 2011-03-25 M. Akbar , K. Saifullah

We present a statistical mechanical calculation of the thermodynamical properties of (non rotating) isolated horizons. The introduction of Planck scale allows for the definition of an universal horizon temperature (independent of the mass…

广义相对论与量子宇宙学 · 物理学 2015-05-28 Amit Ghosh , Alejandro Perez

While the Bekenstein-Hawking entropy is the unique notion of entropy that makes classical black hole thermodynamics consistent, alternative entropy notions (R\'enyi, Tsallis, and generalized constructs) abound in the literature. We explore…

广义相对论与量子宇宙学 · 物理学 2022-12-07 Shin'ichi Nojiri , Sergei D. Odintsov , Valerio Faraoni

We show that a geometrical notion of entropy, definable in flat space, governs the first quantum correction to the Bekenstein-Hawking black hole entropy. We describe two methods for calculating this entropy -- a straightforward Hamiltonian…

高能物理 - 理论 · 物理学 2016-09-06 Curtin Callan , Frank Wilczek

The entanglement and R\'{e}nyi entropies for spherical entangling surfaces in CFTs with gravity duals can be explicitly calculated by mapping these entropies first to the thermal entropy on hyperbolic space and then, using the AdS/CFT…

高能物理 - 理论 · 物理学 2016-09-12 Subhash Mahapatra

Several results of black holes thermodynamics can be considered as firmly founded and formulated in a very general manner. From this starting point we analyse in which way these results may give us the opportunity to gain a better…

广义相对论与量子宇宙学 · 物理学 2009-11-11 J. P. Badiali

Thermal corrections to the entropy of black holes in the Lovelock gravity are calculated. As the thermodynamic behavior of the black holes of this theory falls into two classes, the thermodynamic quantities are computed in each case.…

高能物理 - 理论 · 物理学 2007-05-23 L. Alejandro Correa-Borbonet

Parikh-Wilczek tunnelling framework, which treats Hawking radiation as a tunnelling process, is investigated again. As the first order correction, the log-corrected entropy-area relation naturally emerges in the tunnelling picture if we…

高能物理 - 理论 · 物理学 2008-11-26 Jingyi Zhang

The Bekenstein-Hawking entropy satisfies the generalized second law of black hole thermodynamics for arbitrary thermodynamic evolution within Einstein-Maxwell theory. In contrast, the black hole entropy that satisfies the second law in…

广义相对论与量子宇宙学 · 物理学 2025-04-16 Xin-Yang Wang , Jie Jiang

In this paper, we use the holographic principle to obtain a modified metric of black holes that reproduces the exponentially corrected entropy. The exponential correction of the black hole entropy comes from non-perturbative corrections. It…

广义相对论与量子宇宙学 · 物理学 2024-03-14 Behnam Pourhassan , Hoda Farahani , Farideh Kazemian , İzzet Sakallı , Sudhaker Upadhyay , Dharm Veer Singh

In this article, we will discuss a Lorentzian sector calculation of the entropy of a minimally coupled scalar field in the Schwarzschild black hole background using the brick wall model of 't Hooft. In the original article, the WKB…

广义相对论与量子宇宙学 · 物理学 2016-03-08 Kaushik Ghosh

In this paper we consider the generalized uncertainty principle in the tunneling formalism via Hamilton-Jacobi method to determine the quantum-corrected Hawking temperature and entropy for 2+1-dimensional noncommutative acoustic black…

高能物理 - 理论 · 物理学 2015-02-03 M. A. Anacleto , F. A. Brito , G. C. Luna , E. Passos , J. Spinelly

Recently, the BTZ black hole in the presence of the gravitational Chern-Simons (GCS) term has been studied and it has been found that the usual thermodynamical quantities, like as the black hole mass, angular momentum, and black hole…

高能物理 - 理论 · 物理学 2008-11-26 Mu-in Park