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Related papers: Hawking radiation from rotating brane black holes

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Here we analyze the Hawking radiation detected by an inertial observer in an arbitrary position in a Reissner-Nordstr\"om spacetime, with special emphasis on the asymptotic behavior of the Hawking spectrum as an observer approaches the…

General Relativity and Quantum Cosmology · Physics 2023-04-14 Tyler McMaken , Andrew J. S. Hamilton

Stimulated emission by black holes is discussed in light of the analogue gravity program. We first consider initial quantum states containing a definite number of particles, and then we take into account the case where the initial state is…

General Relativity and Quantum Cosmology · Physics 2016-03-16 F. Belgiorno , S. L. Cacciatori

Primordial black holes (PBHs) could account for all or part of dark matter, as well as for some LIGO events. We discuss the spins of primordial black holes produced in different cosmological scenarios, with the emphasis on recently…

Cosmology and Nongalactic Astrophysics · Physics 2021-09-06 Marcos M. Flores , Alexander Kusenko

Hawking radiation is computed in different coordinate systems using the method of complex paths. In this procedure the event horizon of the 2D Schwarzschild stringy black hole is treated as a singularity for the semiclassical action…

High Energy Physics - Theory · Physics 2007-05-23 Elias C. Vagenas

In this thesis, we first present a brief review of black hole radiation which is commonly called Hawking radiation. The existence of Hawking radiation by itself is well established by now because the same result is derived by several…

High Energy Physics - Theory · Physics 2010-03-30 Koichiro Umetsu

We perform a parton level study of angular correlations, in higher dimensional black hole events scenarios at the LHC. We start by discussing some features of the angular spectrum in the high energy limit using the geometrical optics…

High Energy Physics - Phenomenology · Physics 2012-03-26 Marco O. P. Sampaio

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…

General Relativity and Quantum Cosmology · Physics 2007-05-23 Chris M. Chambers , William A. Hiscock , Brett E. Taylor

We re-examine Hawking radiation for a nonrotating (2+1)-dimensional BTZ black hole and evaluate the transmission probability of tunneling through the barrier of the event horizon employing the standard method of WKB approximation. Our…

General Relativity and Quantum Cosmology · Physics 2022-08-18 Bijan Bagchi , Sauvik Sen

We discuss the conditions under which plane electromagnetic and gravitational waves can be amplified by a rotating black hole due to superradiant scattering. We show, in particular, that amplification can occur for low-frequency waves with…

General Relativity and Quantum Cosmology · Physics 2017-03-22 Joao G. Rosa

The emission of Hawking radiation from a black hole was predicted to be stationary, which is necessary for the correspondence between Hawking radiation and black-body radiation. Spontaneous Hawking radiation was observed in analogue black…

General Relativity and Quantum Cosmology · Physics 2025-10-29 Victor I. Kolobov , Katrine Golubkov , Juan Ramón Muñoz de Nova , Jeff Steinhauer

We compute the absorption cross section and the total power carried by gravitons in the evaporation process of a higher-dimensional non-rotating black hole. These results are applied to a model of extra dimensions with standard model fields…

High Energy Physics - Theory · Physics 2009-11-11 Vitor Cardoso , Marco Cavaglia , Leonardo Gualtieri

We compute the emission spectrum of minimally coupled particles with spin that are Hawking radiated from four dimensional black holes in string theory. For a range of the black hole parameters the result has a product structure that may be…

High Energy Physics - Theory · Physics 2009-09-17 Mirjam Cvetic , Finn Larsen

We briefly review the microscopic modeling of black holes as bound states of branes in the context of the soluble D1-D5 system. We present a discussion of the low energy brane dynamics and account for black hole thermodynamics and Hawking…

High Energy Physics - Theory · Physics 2007-05-23 Spenta R. Wadia

The density matrix of Hawking radiation is calculated in the model of black hole with fluctuating horizon. Quantum fluctuations smear the classical horizon of black hole and modify the density matrix of radiation producing the off-diagonal…

General Relativity and Quantum Cosmology · Physics 2019-04-02 Mikhail Z. Iofa

Hawking radiation in d=4 is regarded as a well understood quantum theoretical feature of Black Holes or of other geometric backgrounds with an event horizon. On the other hand, the dilaton theory emerging after spherical reduction and…

General Relativity and Quantum Cosmology · Physics 2017-10-04 W. Kummer , D. V. Vassilevich

Binary systems of black holes emit gravitational waves as they move through their orbits. While most of the emitted radiation escapes to future null infinity, a small fraction is absorbed by the black holes themselves. This is known as…

General Relativity and Quantum Cosmology · Physics 2024-12-05 Danilo Chiaramello , Rossella Gamba

Hawking radiation is nowadays being understood as tunnelling through black hole horizons. Here, the extension of the Hamilton-Jacobi approach to tunnelling for non-rotating and rotating black holes in different non-singular coordinate…

High Energy Physics - Theory · Physics 2010-04-29 Bhramar Chatterjee , A. Ghosh , P. Mitra

A gravitational bound state, called a Macro Holeum, is created from a very large number of microscopic black holes of primordial or a non-primordial origin. All of them undergo orbital motion, under the action of gravity, around their…

General Physics · Physics 2009-03-05 A. L. Chavda , L. K. Chavda

The Hawking radiation of Weyl neutrinos in an arbitrarily accelerating Kinnersley black hole is investigated by using a method of the generalized tortoise coordinate transformation. Both the location and temperature of the event horizon…

General Relativity and Quantum Cosmology · Physics 2009-11-10 Wu Shuang-Qing , Yan Mu-Lin

A mechanism is found that explains how matter falling into the future event horizon of a black hole leaves information there, which it sends to the past event horizon, and there it determines how particles are emitted. This way information…

General Relativity and Quantum Cosmology · Physics 2025-01-06 Gerard t Hooft