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We study the Hawking radiation from the five-dimensional charged static squashed Kaluza-Klein black hole by the tunneling of charged scalar particles and charged fermions. In contrast to the previous studies of Hawking radiation from…

高能物理 - 理论 · 物理学 2022-04-25 Ken Matsuno

We introduce quantum field theory on quantum space-times techniques to characterize the quantum vacua as a first step towards studying black hole evaporation in spherical symmetry in loop quantum gravity and compute the Hawking radiation.…

广义相对论与量子宇宙学 · 物理学 2015-06-18 Rodolfo Gambini , Jorge Pullin

The quasi-classical method of deriving Hawking radiation under the consideration of canonical invariance is investigated. We find that the horizon should be regarded as a two-way barrier and the ingoing amplitude should be calculated…

高能物理 - 理论 · 物理学 2009-03-24 Baocheng Zhang , Qing-yu Cai , Ming-sheng Zhan

We study about an approximation method of the Hawking radiation. We analyze an massless scalar field in exotic black hole backgrounds models which have peculiar properties in black hole thermodynamics (monopole black hole in SO(3)…

广义相对论与量子宇宙学 · 物理学 2009-10-31 Takashi Tamaki , Kei-ichi Maeda

Modeling the collapse of an extreme Reissner-Nordstr\"om (ERN) black hole by solving the corresponding moving mirror model for the trajectory that asymptotically approaches uniform acceleration, we obtain the non-zero beta coefficients for…

广义相对论与量子宇宙学 · 物理学 2020-05-28 Michael R. R. Good

We provide a simple way for calculating the entropy of a Schwarzschild black hole from the entropy of its Hawking radiation. To this end, we show that if a thermodynamic system loses its energy only through the black body radiation, its…

广义相对论与量子宇宙学 · 物理学 2017-03-13 Sajad Aghapour , Kamal Hajian

We revisit Hawking's original derivation of the evaporation process in a non-stationary spacetime, presenting it in a clear and pedagogical manner, with a focus on the spherical collapse of a star into a black hole. Our analysis highlights…

广义相对论与量子宇宙学 · 物理学 2025-02-19 Mariano Cadoni , Salvatore Mignemi , Mirko Pitzalis , Andrea Pierfrancesco Sanna

The purpose of this paper is to analyse the back reaction problem, between Hawking radiation and the black hole, in a simplified model for the black hole evaporation in the quantum geometrodynamics context. The idea is to transcribe the…

广义相对论与量子宇宙学 · 物理学 2021-08-16 João Marto

Hawking radiation from black holes has been studied as a phenomenon of quantum tunneling of particles through their horizons. We have extended this approach to study the tunneling of Dirac particles from a large class of black holes which…

高能物理 - 理论 · 物理学 2011-04-20 Usman A. Gillani , K. Saifullah

When a black hole evaporates, there arises a net energy flow from the black hole into its outside environment due to the Hawking radiation and the energy accretion onto black hole. Exactly speaking, due to the net energy flow, the black…

广义相对论与量子宇宙学 · 物理学 2008-11-12 Hiromi Saida

We propose a simple procedure for evaluating the main thermodynamical attributes of a Schwarzschild's black hole: Bekenstein-Hawking entropy, Hawking's temperature and Bekenstein's quantization of the surface area. We make use of the…

广义相对论与量子宇宙学 · 物理学 2009-11-13 V. Pankovic , M. Predojevic , P. Grujic

We show that spherical accretion onto astrophysical black holes can be considered as a natural example of analogue system. We provide, for the first time, an exact analytical scheme for calculating the analogue Hawking temperature and…

广义相对论与量子宇宙学 · 物理学 2009-11-10 Tapas K. Das

We study Hawking radiation as a phenomenon of tunneling through event horizons of charged torus-like as well as dilaton black holes involving cosmological constant based on Kerner and Mann's formulation. We obtain tunneling probabilities as…

广义相对论与量子宇宙学 · 物理学 2015-06-18 M. Sharif , Wajiha Javed

Hawking's prediction of black-hole evaporation depends on the application of known physics to fantastically high energies -- well beyond the Planck scale. Here, I show that before these extreme regimes are reached, another physical effect…

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

The aim of these notes is both to review the standard understanding of the Hawking effect, and to discuss the modifications to this understanding that might be required by new physics at short distances. The fundamentals of the Unruh effect…

高能物理 - 理论 · 物理学 2007-05-23 Theodore A. Jacobson

The quantum stress-energy tensor of a massless scalar field propagating in the two-dimensional Vaidya-de Sitter metric, which describes a classical model spacetime for a dynamical evaporating black hole in an inflationary universe, is…

高能物理 - 理论 · 物理学 2010-04-06 Wung-Hong Huang

Using the formalism that separates the contributions of vacuum fluctuations and radiation reaction to the rate of change of the mean atomic energy, we show that a two-level atom in interaction with a quantum massless scalar field both in…

高能物理 - 理论 · 物理学 2008-11-26 Hongwei Yu , Wenting Zhou

We present a method for computing the spectrum of black hole radiation of a scalar field satisfying a wave equation with high frequency dispersion. The method involves a combination of Laplace transform and WKB techniques for finding…

高能物理 - 理论 · 物理学 2008-11-26 Steven Corley

We find a family of exact solutions to the semi-classical equations (including back-reaction) of two-dimensional dilaton gravity, describing infalling null matter that becomes outgoing and returns to infinity without forming a black hole.…

广义相对论与量子宇宙学 · 物理学 2009-10-28 Sukanta Bose , Leonard Parker , Yoav Peleg

In this letter we study the process of Hawking radiation of a black hole assuming the existence of a limiting physical curvature scale. The particular model is constructed using the Limiting Curvature Hypothesis (LCH) and in the context of…

高能物理 - 理论 · 物理学 2014-11-18 Damien A. Easson