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Related papers: Self-amplifying Hawking radiation and its backgrou…

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We find radiation in an infalling frame and present an explicit analytic evidence of the failure of no drama condition by showing that an infalling observer finds an infinite negative energy density at the event horizon. The negative and…

High Energy Physics - Theory · Physics 2014-04-02 Wontae Kim , Edwin J. Son

We motivate through a detailed analysis of the Hawking radiation in a Schwarzschild background a scheme in accordance with quantum unitarity. In this scheme the semi-classical approximation of the unitary quantum - horizonless - black hole…

High Energy Physics - Theory · Physics 2011-01-05 Francois Englert , Philippe Spindel

This article investigates the possibility that Hawking-like quanta emitted by a moving mirror can be purified by late-time vacuum fluctuations, as proposed in Ref. [1]. Our motivation originates from recent discussions in Refs. [2,3] on…

General Relativity and Quantum Cosmology · Physics 2025-12-23 Ivan Agullo , Paula Calizaya Cabrera , Beatriz Elizaga Navascués

The production of Hawking radiation by a single horizon is not dependent on the high-frequency dispersion relation of the radiated field. When there are two horizons, however, Corley and Jacobson have shown that superluminal dispersion…

General Relativity and Quantum Cosmology · Physics 2008-03-06 Ulf Leonhardt , Thomas G. Philbin

We study the Hawking radiation for the acoustic black hole. In the beginning we follow the outline of T.Jacobson but then we use a different $2+1$ vacuum state similar to the vacuum state constructed by W.Unruh. We also use a special form…

General Relativity and Quantum Cosmology · Physics 2018-07-17 Gregory Eskin

A recently proposed model incorporating a series of higher-curvature corrections allows for analytic black-hole solutions at each order of the expansion, with a fully regular black hole emerging in the limit of infinite number of terms. An…

General Relativity and Quantum Cosmology · Physics 2025-09-22 Roman. A. Konoplya , Alexander Zhidenko

A ``large'' AdS black hole can attain equilibrium with its own Hawking radiation, and in that condition it is thought to be dual to a strongly coupled field theory, also at equilibrium. But the interior of the black hole is by no means…

High Energy Physics - Theory · Physics 2024-03-20 Brett McInnes

Hawking radiation is derived from the existence of a euclidean instanton which lives in the euclidean black hole geometry. Upon taking into account the gravitational field of the instanton itself, its action is exactly equal to one quarter…

General Relativity and Quantum Cosmology · Physics 2009-10-30 S. Massar , R. Parentani

Hawking radiation acts as a cosmic censor since it carries away the angular momentum of the black hole, proportionally more than its mass. In this work we first show that an extremal black hole cannot exist since it will be pushed away from…

General Relativity and Quantum Cosmology · Physics 2016-06-24 Koray Düztaş , İbrahim Semiz

Hawking radiation viewed as a semiclassical tunneling process from the event horizon of the (2 + 1)-dimensional rotating BTZ black hole is carefully reexamined by taking into account not only the energy conservation but also the…

High Energy Physics - Theory · Physics 2009-11-11 Shuang-Qing Wu , Qing-Quan Jiang

Using the analytic extension method, we study Hawking radiation of an $(n + 4)$-dimensional Schwarzschild-de Sitter black hole. Under the condition that the total energy is conserved, taking the reaction of the radiation of particles to the…

General Relativity and Quantum Cosmology · Physics 2015-03-17 Zhao Ren Zhao , Huai Fan Li , Li-Chun Zhang , Yue-qin Wu

We investigate the Hawking radiation of massive spin-1 vector particles, which are coupled to vacuum fluctuations of a quantum field, from Rindler modified Schwarzschild black hole. Rindler acceleration is used to produce the post-general…

General Physics · Physics 2017-09-05 I. Sakalli , A. Ovgun

We demonstrate that the black hole evaporation can be modelled as a process where one symmetry of the system is spontaneously broken continuously. We then identify three free-parameters of the system. The sign of one of the free-parameters,…

General Relativity and Quantum Cosmology · Physics 2024-04-30 Ivan Arraut

Black holes are capable of reflection: there is a finite probability for any particle that approaches the event horizon to bounce back. The albedo of the black hole depends on its temperature and the energy of the incoming particle. The…

General Relativity and Quantum Cosmology · Physics 2009-11-10 M. Yu. Kuchiev

Acoustic black holes are formed when a fluid flowing with subsonic velocities, accelerates and becomes supersonic. When the flow is directed from the subsonic to supersonic region, the surface on which the normal component of fluid velocity…

General Relativity and Quantum Cosmology · Physics 2022-09-20 Shreyansh S. Dave , Oindrila Ganguly , Saumia P. S. , Ajit M. Srivastava

Hawking's black hole information puzzle highlights the incompatibility between our present understanding of gravity and quantum physics. However, Hawking's prediction of black-hole evaporation is at a semiclassical level. One therefore…

General Relativity and Quantum Cosmology · Physics 2015-06-25 Shahar Hod

We review recent work on the Hawking radiation of rotating brane black holes, as may be produced at the LHC. We outline the methodology for calculating the fluxes of particles, energy and angular momentum by spin-0, spin-1/2 and spin-1…

High Energy Physics - Theory · Physics 2007-08-28 Elizabeth Winstanley

The mechanisms which give rise to Hawking radiation are revealed by analyzing in detail pair production in the presence of horizons. In preparation for the black hole problem, three preparatory problems are dwelt with at length: pair…

General Relativity and Quantum Cosmology · Physics 2008-11-26 Robert Brout , Serge Massar , Renaud Parentani , Philippe Spindel

Grey-body factors are not only essential ingredients for computing the intensity of Hawking radiation, but also serve as characteristics of black hole's geometry that are closely related to their quasinormal modes. Importantly, they tend to…

General Relativity and Quantum Cosmology · Physics 2026-02-16 Roman A. Konoplya , Thomas D. Pappas

Hawking's model of black hole evaporation is not unitary and leads to a mixed density matrix for the emitted radiation, while the Page model describes a unitary evaporation process in which the density matrix evolves from an almost thermal…

High Energy Physics - Theory · Physics 2015-09-02 Lasma Alberte , Ram Brustein , Andrei Khmelnitsky , A. J. M. Medved