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We study the evolution of an evaporating rotating black hole, described by the Kerr metric, which is emitting either solely massless scalar particles or a mixture of massless scalar and nonzero spin particles. Allowing the hole to radiate…

广义相对论与量子宇宙学 · 物理学 2010-11-19 Brett E. Taylor , Chris M. Chambers , William A. Hiscock

We investigate the evaporation process of a Kerr-de Sitter black hole with the Unruh-Hawking-like vacuum state, which is a realistic vacuum state modelling the evaporation process of a black hole originating from gravitational collapse. We…

广义相对论与量子宇宙学 · 物理学 2021-10-12 Ruth Gregory , Ian G. Moss , Naritaka Oshita , Sam Patrick

We study a regular rotating black hole evaporating under the Hawking emission of a single scalar field. The black hole is described by the Kerr-black-bounce metric with a nearly extremal regularizing parameter $\ell=0.99r_+$. We compare the…

广义相对论与量子宇宙学 · 物理学 2024-09-06 Marco Calzá

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

We present a comprehensive comparative analysis of the evaporation dynamics of Schwarzschild, Kerr, and Reissner- Nordstrom black holes, focusing on the evolution of their mass, charge, and angular momentum, using detailed calculations of…

广义相对论与量子宇宙学 · 物理学 2025-11-17 Christopher Ewasiuk , Stefano Profumo

We report and comment upon the principal results of an investigation into the evolution of rotating black holes emitting massless scalar radiation via the Hawking process. It is demonstrated that a Kerr black hole evaporating by the…

广义相对论与量子宇宙学 · 物理学 2007-05-23 Chris M. Chambers , William A. Hiscock , Brett E. Taylor

In the classical theory of general relativity black holes can only absorb and not emit particles. When quantum mechanical effects are taken into account, then the black holes emit particles as hot bodies with temperature proportional to…

广义相对论与量子宇宙学 · 物理学 2019-11-04 N. S. M. de Santi , R. Santarelli

We compute the graybody factor and evaporation rate of a rotating black hole in the presence of a hypothetical reflective surface slightly outside the outer horizon radius, assuming that it spontaneously emits thermal radiation due to…

广义相对论与量子宇宙学 · 物理学 2022-08-31 Naritaka Oshita , Hayato Motohashi , Sousuke Noda

Entropy of the Kerr-Newman black hole is calculated via the brick wall method with maintaining careful attention to the contribution of superradiant scalar modes. It turns out that the nonsuperradinat and superradiant modes simultaneously…

广义相对论与量子宇宙学 · 物理学 2009-10-30 Jeongwon Ho , Won Tae Kim , Young-Jai Park , Hyeonjoon Shin

We study the evaporation of black holes in non-commutative space-times. We do this by calculating the correction to the detector's response function for a moving mirror in terms of the noncommutativity parameter $\Theta$ and then extracting…

广义相对论与量子宇宙学 · 物理学 2008-11-26 R. Casadio , P. H. Cox , B. Harms , O. Micu

The Page curve describing the process of black hole evaporation is derived in terms of a family, parametrized in terms of the evaporation time, of finite type II_1 factors, associated, respectively, to the entanglement wedges of the black…

高能物理 - 理论 · 物理学 2024-05-21 Cesar Gomez

We consider rotating Primordial black holes (PBHs) and study the effect of accretion of radiation in the radiation dominated era. The central part of our analysis deals with the role of the angular momentum parameter on the evolution of…

广义相对论与量子宇宙学 · 物理学 2015-05-07 Swapna Mahapatra , Bibekananda Nayak

We compute the black hole entropy and the entanglement entropy of Hawking radiations due to photons during the evaporation of a 4d asymptotically flat Kerr black hole. The Page curve for the Kerr black hole is obtained in the original way…

高能物理 - 理论 · 物理学 2024-10-02 Jun Nian

We consider the black hole dynamical evolution in the framework of a Lorentz-violating spacetime endowed with a Schwarzchild-like momentum-dependent metric. Large deviations from the Hawking-Bekenstein predictions are obtained, depending on…

广义相对论与量子宇宙学 · 物理学 2011-06-14 S. Esposito , G. Salesi

We study the evolution of a Kerr black hole emitting scalar radiation via the Hawking process. We show that the rate at which mass and angular momentum are lost by the black hole leads to a final evolutionary state with nonzero angular…

广义相对论与量子宇宙学 · 物理学 2009-10-30 Chris M. Chambers , William A. Hiscock , Brett Taylor

We investigate the evaporation of an uncharged and non-rotating black hole (BH) in vacuum, by taking into account the effects given by the shrinking of the horizon area. These include the back-reaction on the metric and other smaller…

广义相对论与量子宇宙学 · 物理学 2023-05-04 Michael R. R. Good , Alessio Lapponi , Orlando Luongo , Stefano Mancini

We found black hole evolution on a quantum-gravitational scattering framework with an aim to tackle the black hole information paradox. With this setup, various pieces of the system information are explicit from the start and unitary…

高能物理 - 理论 · 物理学 2021-11-12 I. Y. Park

There have been a number of suggestions that the r = 0 singularity of a spherically symmetric (uncharged) evaporating black hole can be circumvented by a quantum transition to a white hole, which eventually releases all trapped quantum…

广义相对论与量子宇宙学 · 物理学 2019-04-08 James M. Bardeen

Kerr black holes radiate neutrinos in an asymmetric pattern, preferentially in the lower hemisphere relative to the black hole's rotation axis, while antineutrinos are predominantly produced in the upper hemisphere. Leveraging this…

高能天体物理现象 · 物理学 2023-10-13 Yuber F. Perez-Gonzalez

We investigate the black hole thermodynamics in a "deformed" relativity framework where the energy-momentum dispersion law is Lorentz-violating and the Schwarzchild-like metric is momentum-dependent with a Planckian cut-off. We obtain net…

广义相对论与量子宇宙学 · 物理学 2009-05-22 G. Salesi , E. Di Grezia
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