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相关论文: Generalized Entropy Implies Varying-G: Horizon Are…

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In the GEVAG (Generalized Entropy Varying-G) framework, any generalization to horizon entropy leads to a varying gravitational "constant" $G_\text{eff}$ that is a function the horizon area. In this work, it is shown that if we promote…

广义相对论与量子宇宙学 · 物理学 2026-04-03 Yen Chin Ong

The first part of this work provides a review of recent research on generalised entropies and their origin, as well as its application to black hole thermodynamics. To start, it is shown that the Hawking temperature and the…

广义相对论与量子宇宙学 · 物理学 2025-02-11 Emilio Elizalde , Shin'ichi Nojiri , Sergei D. Odintsov

In general yes, but also not quite. It is known that if the Bekenstein-Hawking entropy is replaced by some kind of generalized entropy, then the Bekenstein bound may be grossly violated. In this work, we show that this undesired violation…

广义相对论与量子宇宙学 · 物理学 2025-10-17 Hengxin Lu , Yen Chin Ong

The Bekenstein-Hawking entropy of a black hole is proportional to its horizon area, hence in $D=2$ spacetime dimensions it is constant because the horizon degenerates into two points. This fact is consistent with Einstein's gravity becoming…

高能物理 - 理论 · 物理学 2023-07-26 Shin'ichi Nojiri , Sergei D. Odintsov , Valerio Faraoni

Recently, there has been much attention devoted to resolving the quantum corrections to the Bekenstein-Hawking (black hole) entropy, which relates the entropy to the cross-sectional area of the black hole horizon. Using generalized…

广义相对论与量子宇宙学 · 物理学 2015-03-30 Abdel Nasser Tawfik , Eiman Abou El Dahab

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

Black hole entropy appears to be ``universal''--many independent calculations, involving models with very different microscopic degrees of freedom, all yield the same density of states. I discuss the proposal that this universality comes…

广义相对论与量子宇宙学 · 物理学 2010-04-28 S. Carlip

Wald's entropy formula allows one to find the entropy of black holes' event horizon within any diffeomorphism invariant theory of gravity. When applied to general relativity, the formula yields the Bekenstein-Hawking result but, for any…

广义相对论与量子宇宙学 · 物理学 2015-08-24 Fayçal Hammad

In this work we apply the gravity-thermodynamics approach for the case of generalized mass-to-horizon entropy, which is a two-parameter extension of Bekenstein-Hawking entropy that arises from the extended mass-to-horizon relation, that is…

广义相对论与量子宇宙学 · 物理学 2025-04-01 Spyros Basilakos , Andreas Lymperis , Maria Petronikolou , Emmanuel N. Saridakis

As early as 1902, Gibbs pointed out that systems whose partition function diverges, e.g. gravitation, lie outside the validity of the Boltzmann-Gibbs (BG) theory. Consistently, since the pioneering Bekenstein-Hawking results, physically…

统计力学 · 物理学 2013-07-08 Constantino Tsallis , Leonardo J. L. Cirto

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

We investigate the cosmological implications of generalized mass-to-horizon entropy, a two-parameter extension of the standard Bekenstein entropy based on the mass-to-horizon relation. Assuming the entropy balance relation, we derive the…

广义相对论与量子宇宙学 · 物理学 2026-05-26 Smeehan S Shameeem , Priyesh K , Krishna P. B , Titus K Mathew

An entropic-force scenario, i.e., entropic cosmology, assumes that the horizon of the universe has an entropy and a temperature. In the present study, in order to examine entropic cosmology, we derive entropic-force terms not only from the…

宇宙学与河外天体物理 · 物理学 2013-10-30 Nobuyoshi Komatsu , Shigeo Kimura

We examine possible additive corrections to the Bekenstein-Hawking (BH) entropy of black holes due to very general classical and quantal modifications of general relativity. In general, black hole entropy is subject to the Generalized…

广义相对论与量子宇宙学 · 物理学 2024-08-28 Parthasarathi Majumdar

We present a semi-rigorous justification of Bekenstein's Generalized Second Law of Thermodynamics applicable to a universe with black holes present, based on a generic quantum gravity formulation of a black hole spacetime, where the bulk…

广义相对论与量子宇宙学 · 物理学 2024-04-03 Parthasarathi Majumdar

In this paper we propose a way of determining the subleading corrections to the Bekenstein-Hawking black hole entropy by considering a modified generalized uncertainty principle with two parameters. In the context of modified generalized…

高能物理 - 理论 · 物理学 2007-05-23 Yumi Ko , Sunggeun Lee , Soonkeon Nam

We investigate the thermodynamics of Schwarzschild-Tangherlini black hole in the context of the generalized uncertainty principle. The corrections to the Hawking temperature, entropy and the heat capacity are obtained via the modified…

高能物理 - 理论 · 物理学 2016-09-29 Z. W. Feng , H. L. Li , X. T. Zu , S. Z. Yang

A simple regular black hole solution satisfying the weak energy condition is obtained within Einstein--non--linear electrodynamics theory. We have computed the thermodynamic properties of this black hole by a careful analysis of the…

广义相对论与量子宇宙学 · 物理学 2016-11-23 Nicolás Morales--Durán , Andrés F. Vargas , Paulina Hoyos--Restrepo , Pedro Bargueño

Recently, there has been a lot of attention devoted to resolving the quantum corrections to the Bekenstein-Hawking entropy of the black hole. In particular, the coefficient of the logarithmic term in the black hole entropy correction has…

广义相对论与量子宇宙学 · 物理学 2008-11-26 Zhao Ren , Zhao Hai-Xia , Hu Shuang-Qi

Recently, there has been much attention devoted to resolving the quantum corrections to the Bekenstein-Hawking entropy of the black hole. In particular, many researchers have expressed a vested interest in the coefficient of the logarithmic…

广义相对论与量子宇宙学 · 物理学 2009-03-19 Zhao Hai-Xia , Li Huai-Fan , Hu Shuang-Qi , Zhao Ren
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