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Adopting the thin-layer improved brick-wall method, we investigate the thermodynamics of a black hole embedded in a spatially flat Friedmann-Robertson-Walker universe. We calculate the temperature and the entropy at every apparent horizon…

广义相对论与量子宇宙学 · 物理学 2011-03-07 Khireddine Nouicer

We quantize a scalar field at finite temperature T in the background of a classical black hole, adopting 't Hooft's ``brick wall'' model with generic mixed boundary conditions at the brick wall boundary. We first focus on the exactly…

高能物理 - 理论 · 物理学 2007-05-23 Giuseppe Milanesi , Mihail Mintchev

By reintroducing Lorentz invariance in canonical loop quantum gravity, we define a geometrical notion of temperature for quantum isolated horizons. This is done by demanding that the horizon state satisfying the boundary conditions be a…

广义相对论与量子宇宙学 · 物理学 2014-06-04 Daniele Pranzetti

We present a microscopic statistical-mechanical foundation for interpreting the horizon area of a scrambling black hole as coherent information, equivalently negative conditional quantum entropy, in Hawking's pair-creation picture. We…

高能物理 - 理论 · 物理学 2026-05-26 Koji Azuma

This paper investigates whether the framework of fractional quantum mechanics can broaden our perspective of black hole thermodynamics. Concretely, we employ a {\it space-fractional} derivative \cite{Rie} as our main tool. Moreover, we…

广义相对论与量子宇宙学 · 物理学 2021-07-27 S. Jalalzadeh , F. Rodrigues da Silva , P. V. Moniz

The role of horizon area quantization on black hole thermodynamics is investigated in this article. The coefficient appearing in the quantization of area is fixed by an appeal to the saturated form of the Landauer's principle. Then by…

广义相对论与量子宇宙学 · 物理学 2025-04-24 Arpita Jana , Manjari Dutta , Sunandan Gangopadhyay

The Bekenstein-Hawking equation states that black holes should have entropy proportional to their areas to make black hole physics compatible with the second law of thermodynamics. However, this equation leads to an inconsistency among the…

高能物理 - 理论 · 物理学 2025-04-04 Koji Azuma , Sathyawageeswar Subramanian , Go Kato

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

Recently, exotic black holes whose masses and angular momenta are interchanged have been found, and it is known that their entropies depend only on the $inner$ horizon areas. But a basic problem of these entropies is that the second law of…

高能物理 - 理论 · 物理学 2008-11-26 Mu-In Park

Although we have convincing evidence that a black hole bears an entropy proportional to its surface (horizon) area, the ``statistical mechanical'' explanation of this entropy remains unknown. Two basic questions in this connection are: what…

广义相对论与量子宇宙学 · 物理学 2008-02-03 Rafael D. Sorkin

If simple entropy in the Bekenstein-Hawking area law for a Schwarzschild black hole is replaced with 'negative' quantum conditional entropy, which quantifies quantum entanglement, of positive-energy particles of the black hole relative to…

高能物理 - 理论 · 物理学 2025-04-04 Koji Azuma , Go Kato

The comparison of geometrical properties of black holes with classical thermodynamic variables reveals surprising parallels between the laws of black hole mechanics and the laws of thermodynamics. Since Hawking's discovery that black holes…

物理学史与哲学 · 物理学 2019-03-18 Carina E. A. Prunkl , Christopher G. Timpson

Black hole thermodynamics is the area of study that seeks to reconcile the laws of thermodynamics with the existence of black hole event horizons. Here we calculate the entropy corresponding to the interior of a Schwarzschild black hole for…

综合物理 · 物理学 2019-02-28 Sandip Dutta , Ritabrata Biswas

To derive black hole thermodynamics in any quantum theory of gravity, one must introduce constraints that ensure that a black hole is actually present. For a large class of black holes, the imposition of such ``horizon constraints'' allows…

广义相对论与量子宇宙学 · 物理学 2015-05-13 S. Carlip

Some problems have been found as to the definition of entropy of black hole being applied to the extremal Kerr-Newman case, which has conflicts with the third law of thermodynamics. We have proposed a new modification for the near extremal…

广义相对论与量子宇宙学 · 物理学 2007-05-23 Hai Lin

The coupling of a string to gravity allows for Schwarzschild black holes whose entropy to area relation is $S=(A/4)(1-4\mu)$, where $\mu$ is the string tension. This departure from the A/4 universality results from a string instanton…

高能物理 - 理论 · 物理学 2009-10-28 Francois Englert , Laurent Houart , Paul Windey

We argue that the statistical entropy relevant for the thermal interactions of a black hole with its surroundings is (the logarithm of) the number of quantum microstates of the hole which are distinguishable from the hole's exterior, and…

广义相对论与量子宇宙学 · 物理学 2008-11-26 Carlo Rovelli

We review aspects of the thermodynamics of black holes and in particular take into account the fact that the quantum entanglement between the degrees of freedom of a scalar field, traced inside the event horizon, can be the origin of black…

广义相对论与量子宇宙学 · 物理学 2016-07-28 Saurya Das , S. Shankaranarayanan , Sourav Sur

Using the corrected expression of Hawking temperature derived from the tunneling formalism beyond semiclassical approximation developed by \emph{Banerjee} and \emph{Majhi}\cite{beyond}, we calculate the corrected entropy of a high…

高能物理 - 理论 · 物理学 2009-10-31 Tao Zhu , Ji-Rong Ren , Ming-Fan Li

Black holes monopolize nowadays the center stage of fundamental physics. Yet, they are poorly understood objects. Notwithstanding, from their generic properties, one can infer important clues to what a fundamental theory, a theory that…

广义相对论与量子宇宙学 · 物理学 2008-04-05 José P. S. Lemos
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