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In this paper we obtain the black hole metric from a semiclassical analysis of loop quantum black hole. Our solution and the Schwarzschild one tend to match well at large distances from Planck region. In r=0 the semiclassical metric is…

General Relativity and Quantum Cosmology · Physics 2009-09-29 Leonardo Modesto

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

A brief overview of the discovery that macroscopic black holes are thermodynamical systems is presented. They satisfy the laws of thermodynamics and are associated with a temperature and an entropy equal to one quarter of their horizon area…

General Relativity and Quantum Cosmology · Physics 2023-10-31 Alejandro Perez

The energy injection through Hawking evaporation has been used to put strong constraints on primordial black holes as a dark matter candidate at masses below $10^{17}\,\rm{g}$. However, Hawking's semiclassical approximation breaks down at…

Cosmology and Nongalactic Astrophysics · Physics 2024-09-05 Valentin Thoss , Andreas Burkert , Kazunori Kohri

A new method has been developed recently to derive Hawking radiations from black holes based on considerations of gravitational and gauge anomalies at the horizon gr-qc/0502074 hep-th/0602146. In this paper, we apply the method to…

High Energy Physics - Theory · Physics 2010-10-27 Satoshi Iso , Takeshi Morita , Hiroshi Umetsu

When a black hole is put in an "empty" space (zero temperature space) on which there is no matter except the matter of the Hawking radiation (Hawking field), then an outgoing energy flow from the black hole into the empty space exists. By…

General Relativity and Quantum Cosmology · Physics 2007-05-23 Hiromi Saida

This paper considers the effect of Hawking radiation on an eternal black hole - that is. a maximally extended Schwarzschild solution. Symmetry considerations that hold independent of the details of the emission mechanism show there is an…

General Relativity and Quantum Cosmology · Physics 2013-11-05 George F R Ellis

We study the formation and the evaporation of a spherically symmetric black hole in conformal gravity. From the collapse of a spherically symmetric thin shell of radiation, we find a singularity-free non-rotating black hole. This black hole…

General Relativity and Quantum Cosmology · Physics 2018-09-03 Cosimo Bambi , Leonardo Modesto , Shiladitya Porey , Leslaw Rachwal

We show that any soliton solution of an arbitrary two-dimensional integrable equation has the potential to eventually evaporate and emit the exact analogue of Hawking radiation from black holes. From the AKNS matrix formulation of…

General Relativity and Quantum Cosmology · Physics 2019-09-04 Charles W. Robson , Leone Di Mauro Villari , Fabio Biancalana

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…

General Relativity and Quantum Cosmology · Physics 2022-08-31 Naritaka Oshita , Hayato Motohashi , Sousuke Noda

We evaluate the potential of the ATLAS detector for discovering black holes produced at the LHC, as predicted in models with large extra dimensions where quantum gravity is at the TeV scale. We assume that black holes decay by Hawking…

High Energy Physics - Phenomenology · Physics 2011-09-13 Junichi Tanaka , Taiki Yamamura , Shoji Asai , Junichi Kanzaki

We present the quantization of the electromagnetic field near the event horizon of a Schwarzschild black hole using Euclidean path integrals. Our result for the vacuum energy describes a black hole surrounded by a finite volume of photons…

High Energy Physics - Theory · Physics 2026-02-03 Victor H. Alencar

We use a Monte Carlo code to calculate the geodesic orbits of test particles around Kerr black holes, generating a distribution function of both bound and unbound populations of dark matter particles. From this distribution function, we…

High Energy Astrophysical Phenomena · Physics 2015-06-23 Jeremy D. Schnittman

By using the D0-brane cluster picture, we consider the Hawking radiation of Schwarszchild black hole (SBH) in large N Matrix model. We get the correct formula for the the Hawing evaporation rate. Our results give some evidence on the…

High Energy Physics - Theory · Physics 2007-05-23 Yi-hong Gao , Wei Zhang

In this paper, we apply the topological method to the various black holes to derive their Hawking temperature. We show that the this method can easily be employed to compute the Hawking temperature of black holes having spherically…

High Energy Physics - Theory · Physics 2023-08-17 A. Övgün , İ. Sakallı

We present details of a new numerical code designed to study the formation and evaporation of 2-dimensional black holes within the CGHS model. We explain several elements of the scheme that are crucial to resolve the late-time behavior of…

General Relativity and Quantum Cosmology · Physics 2010-12-06 Fethi M Ramazanoğlu , Frans Pretorius

It has been shown that the nonthermal spectrum of Hawking radiation will lead to information-carrying correlations between emitted particles in the radiation. The mutual information carried by such correlations can not be locally observed…

General Relativity and Quantum Cosmology · Physics 2022-05-02 Yu-Xiao Liu , Yu-Han Ma , Yong-Qiang Wang , Shao-Wen Wei , Chang-Pu Sun

The possibility of an alternative way to formulate the Hawking radiation in a static Schwarzschild spacetime has been explored. To calculate the Hawking radiation, there can be two possible choices of the spacetime wedge pairs in the…

High Energy Physics - Theory · Physics 2007-10-23 Tadas K. Nakamura

Astrophysical black hole candidates are thought to be the Kerr black holes predicted by General Relativity, but the actual nature of these objects has still to be proven. The analysis of the electromagnetic radiation emitted by a…

General Relativity and Quantum Cosmology · Physics 2012-12-07 Cosimo Bambi

This paper examines how black holes might compute in light of recent models of the black-hole final state. These models suggest that quantum information can escape from the black hole by a process akin to teleportation. They require a…

Quantum Physics · Physics 2009-11-10 Seth Lloyd
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