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Thermodynamic stability of black holes, described by the R\'enyi formula as equilibrium compatible entropy function, is investigated. It is shown that within this approach, asymptotically flat, Schwarzschild black holes can be in stable…

广义相对论与量子宇宙学 · 物理学 2015-12-09 Viktor G. Czinner , Hideo Iguchi

We study the thermodynamic analysis and logarithm corrections of the new Schwarzschild black hole. We compute the thermodynamic quantities like entropy, Hawking temperature and heat capacity. The area of black holes never decreases because…

广义相对论与量子宇宙学 · 物理学 2022-12-14 Zunaira Akhtar , Rimsha Babar , Riasat Ali

We review some recent advances in black hole thermodynamics, including statistical mechanical origins of black hole entropy and its leading order corrections, from the viewpoints of various quantum gravity theories. We then examine the…

高能物理 - 理论 · 物理学 2008-11-26 Saurya Das

We give a progress report of our research on spacetime fluctuations induced by quantum fields in an evaporating black hole and a black hole in quasi-equilibrium with its Hawking radiation. We note the main issues involved in these two…

广义相对论与量子宇宙学 · 物理学 2016-11-09 B. L. Hu , Albert Roura

One might expect far away from physical black holes that quantum field quantisation performed in Minkowski space is a good approximation. Indeed, all experimental tests in particle colliders reveal no deviations so far. Nevertheless, the…

高能物理 - 理论 · 物理学 2017-06-28 Slava Emelyanov

In this work, we investigate the thermal properties of black holes using a new class of generalized entropy functions [K. Ourabah, Class. Quantum Grav., 41, 015010 (2024)]. At the fundamental level, these entropic forms are associated with…

广义相对论与量子宇宙学 · 物理学 2024-04-15 Homa Shababi , Tanwi Bandyopadhyay , Ujjal Debnath

We show that in asymptotically free mimetic gravity with limiting curvature the black hole singularity can be resolved and replaced by a static patch of de Sitter space. As a result of Hawking evaporation of these non-singular black holes,…

高能物理 - 理论 · 物理学 2020-08-05 Ali H. Chamseddine , Viatcheslav Mukhanov , Tobias B. Russ

An introduction to generalized thermodynamics of quantum black holes, in the one-loop approximation, is given. The material is aimed at graduate students. The topics include: quantum evaporation of black holes, Euclidean formulation of…

广义相对论与量子宇宙学 · 物理学 2022-10-13 Dmitri V. Fursaev

We study the black hole thermodynamics and obtain the correction terms for temperature, entropy, and heat capacity of the Schwarzschild black hole, resulting from the commutation relations in the framework of {\it Modified Generalized…

广义相对论与量子宇宙学 · 物理学 2015-06-05 K. Zeynali , F. Darabi , H. Motavalli

We investigate the possibility of statistical explanation of the black hole entropy by counting quasi-bounded modes of thermal fluctuation in two dimensional black hole spacetime. The black hole concerned is quantum in the sense that it is…

广义相对论与量子宇宙学 · 物理学 2014-11-17 Y. Itoh , M. Hotta , T. Futamase , M. Morikawa

The Lovelock gravity consists of the dimensionally extended Euler densities. The geometry and horizon structure of black hole solutions could be quite complicated in this gravity, however, we find that some thermodynamic quantities of the…

高能物理 - 理论 · 物理学 2007-05-23 Rong-Gen Cai

Black holes are extreme manifestations of general relativity, so one might hope that exotic quantum effects would be amplified in their vicinities, perhaps providing clues to quantum gravity. The commonly accepted treatment of quantum…

广义相对论与量子宇宙学 · 物理学 2007-05-23 Adam D. Helfer

We study quantum gravitational effects on black hole radiation, using loop quantum gravity. Bekenstein and Mukhanov have recently considered the modifications caused by quantum gravity on Hawking's thermal black-hole radiation. Using a…

广义相对论与量子宇宙学 · 物理学 2009-10-28 Marcelo Barreira , Mauro Carfora , Carlo Rovelli

Thermodynamics of extended gravity static spherically symmetric black hole solutions is investigated. The energy issue is discussed making use of the derivation of Clausius relation from equations of motion, evaluating the black hole…

广义相对论与量子宇宙学 · 物理学 2013-01-15 Guido Cognola , Lorenzo Sebastiani , Sergio Zerbini

I reconsider Hawking's analysis of the effects of gravitational collapse on quantum fields, taking into account interactions between the fields. The ultra-high energy vacuum fluctuations, which had been considered to be an awkward…

广义相对论与量子宇宙学 · 物理学 2007-05-23 Adam D. Helfer

The stability of three static and spherically symmetric black hole solutions with nonlinear electromagnetism as a source is investigated in three different ways. We show that the specific heat of all the solutions displays an infinite…

广义相对论与量子宇宙学 · 物理学 2014-02-13 Nora Bretón , Santiago Esteban Perez Bergliaffa

We study the thermodynamic stabilities of uncharged and charged black holes surrounded by quintessence (BHQ) by means of effective thermodynamic quantities. When the state parameter of quintessence $\omega_q$ is appropriately chosen, the…

广义相对论与量子宇宙学 · 物理学 2017-06-28 Meng-Sen Ma , Ren Zhao , Ya-Qin Ma

The effects of thermal fluctuations of the mass (horizon area) and electric charge, on the entropy of non-rotating charged {\it macroscopic} black holes, are analyzed using a grand canonical ensemble. Restricting to Gaussian fluctuations…

广义相对论与量子宇宙学 · 物理学 2009-11-10 Ashok Chatterjee , Parthasarathi Majumdar

In this Chapter we would like to review a "~phenomenological~" approach taking into account the most fundamental feature of string theory or, more in general, of quantum gravity, whatever its origin, which is the existence of a minimal…

广义相对论与量子宇宙学 · 物理学 2017-05-26 Euro Spallucci , Anais Smailagic

We review and correct the classical critical exponents characterizing the transition from negative to positive black hole's heat capacity at high charge--angular momentum. We discuss the stability properties of black holes as a…

广义相对论与量子宇宙学 · 物理学 2009-10-28 C. O. Lousto