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The understanding of black holes in loop quantum gravity is becoming increasingly accurate. This review focuses on the possible experimental or observational consequences of the underlying spinfoam structure of space-time. It adresses both…

广义相对论与量子宇宙学 · 物理学 2018-08-28 Aurélien Barrau , Killian Martineau , Flora Moulin

We compute the entanglement negativity for various pure and mixed state configurations in a bath coupled to an evaporating two dimensional non-extremal Jackiw-Teitelboim (JT) black hole obtained through the partial dimensional reduction of…

高能物理 - 理论 · 物理学 2022-01-25 Jaydeep Kumar Basak , Debarshi Basu , Vinay Malvimat , Himanshu Parihar , Gautam Sengupta

We investigate the inner structure of an evaporating charged black hole, within the context of semiclassical dilaton gravity in two dimensions. The matter fields are charged, allowing the evaporation of both the mass and charge of the black…

广义相对论与量子宇宙学 · 物理学 2007-05-23 Amos Ori

Systems at finite temperature make up the vast majority of realistic physical scenarios. Indeed, although zero temperature is often accompanied by simpler mathematics, the richness in physical results is evident when one considers the…

广义相对论与量子宇宙学 · 物理学 2020-05-29 Gonçalo M. Quinta

We study the time evolution of the entanglement entropy of Hawking radiation in the $(n+1)-$dimensional Kerr-Newman black hole evaporation by the holographic approach that considering the $(n+1)-$dimensional AdS eternal black brane coupled…

高能物理 - 理论 · 物理学 2022-09-13 Po-Chun Sun

We study modifications of the Hawking emission in the evaporation of miniature black holes possibly produced in accelerators when their mass approaches the fundamental scale of gravity, set to 1 TeV according to some extra dimension models.…

高能物理 - 唯象学 · 物理学 2007-05-23 G. L. Alberghi , R. Casadio , D. Galli , D. Gregori , A. Tronconi , V. Vagnoni

This paper argues that the effect of Hawking radiation on an astrophysical black hole situated in a realistic cosmological context is not total evaporation of the black hole; rather there will always be a remnant mass. The key point is that…

广义相对论与量子宇宙学 · 物理学 2013-10-22 George F R Ellis

The problem of complete evaporation of Schwarzschild black holes raised by Hawking is that one has an explosion of the temperature $T=1/8\pi M$ for vanishing black hole mass M. We consider the Reissner-Nordstrom black hole and note that if…

高能物理 - 理论 · 物理学 2022-08-09 Irina Aref'eva , Igor Volovich

We propose a top down construction for Jackiw-Teitelboim (JT) gravity using compactification of $ D=5 $ gravity theories in the presence of Abelian ($ U(1) $) as well as $ SU(2) $ Yang-Mills (YM) fields. The background solutions…

高能物理 - 理论 · 物理学 2020-11-18 Arindam Lala , Hemant Rathi , Dibakar Roychowdhury

An effective string theory in physically relevant cosmological and black hole space times is reviewed. Explicit computations of the quantum string entropy, partition function and quantum string emission by black holes (Schwarzschild,…

高能物理 - 理论 · 物理学 2008-11-26 Marina Ramon Medrano , Norma G. Sanchez

Attention is paid to the fact that temperature of a classical black hole can be derived from the extremality condition of its free energy with respect to variation of the mass of a hole. For a quantum Schwarzschild black hole evaporating…

高能物理 - 理论 · 物理学 2009-12-30 D. V. Fursaev

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

Combination of both quantum field theory (QFT) and string theory in curved backgrounds in a consistent framework, the string analogue model, allows us to provide a full picture of the Kerr-Newman black hole and its evaporation going beyond…

高能物理 - 理论 · 物理学 2010-10-27 A. Bouchareb , M. Ramon Medrano , N. G. Sanchez

The present work investigates the entanglement entropies of the Hawking radiations, the Page times, and the scrambling times, for the eternal planar black holes in the holographic axion gravity. The solutions correspond to a new class of…

The entanglement entropy of black holes is expected to follow the Page curve. After an initial linear increase with time the entanglement entropy should reach a maximum at the Page time and then decrease. This paper introduces an exactly…

量子物理 · 物理学 2024-06-19 Stefan Kehrein

We consider Hawking radiation as due to a tunneling process in a black hole were quantum corrections, derived from Quantum Einstein Gravity, are taken into account. The consequent derivation, satisfying conservation laws, leads to a…

广义相对论与量子宇宙学 · 物理学 2015-06-16 R. Torres , F. Fayos , O. Lorente-Espin

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

We derive a singular solution for the rotating counterpart of Lee-Wick gravity having a point source in a higher-derivative theory. We critically analyze the thermodynamics of such a thermal system by evaluating mass parameters, angular…

广义相对论与量子宇宙学 · 物理学 2022-06-13 Dharm Veer Singh , Sudhaker Upadhyay , Md Sabir Ali

We investigate quantum correlations between successive steps of black hole evaporation and investigate whether they might resolve the black hole information paradox. 'Small' corrections in various models were shown to be unable to restore…

高能物理 - 理论 · 物理学 2019-09-09 Mishkat Al Alvi , Mahbub Majumdar , Md. Abdul Matin , Moinul Hossain Rahat , Avik Roy

We study the thermodynamics of a shell of self-gravitating radiation, bounded by two spherical surfaces. This system provides a consistent model for a gravitating thermal reservoir for different solutions to vacuum Einstein equations in the…

广义相对论与量子宇宙学 · 物理学 2021-09-22 Demetrios Kotopoulis , Charis Anastopoulos