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Robinson-Wilczek's recent work, which treats Hawking radiation as a compensating flux to cancel gravitational anomaly at the horizon of a Schwarzschild-type black hole, is extended to study Hawking radiation of rotating black holes in…

High Energy Physics - Theory · Physics 2008-11-26 Qing-Quan Jiang , Shuang-Qing Wu

Recently, Hawking radiation from a Schwarzschild-type black hole via gravitational anomaly at the horizon has been derived by Robinson and Wilczek. Their result shows that, in order to demand general coordinate covariance at the quantum…

High Energy Physics - Theory · Physics 2014-11-18 Qing-Quan Jiang , Shuang-Qing Wu , Xu Cai

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.…

General Relativity and Quantum Cosmology · Physics 2009-10-28 Sukanta Bose , Leonard Parker , Yoav Peleg

We study the Hawking radiation of black holes by considering the canonical typicality. For the universe consisting of black holes and their outer part, we directly obtain a non-thermal radiation spectrum of an arbitrary black hole from its…

Quantum Physics · Physics 2018-06-21 Yu-Han Ma , Qing-Yu Cai , Hui Dong , Chang-Pu Sun

We investigate the Hawking radiation cascade from the five-dimensional charged black hole with a scalar field coupled to higher-order Euler densities in a conformally invariant manner. We give the semi-analytic calculation of greybody…

High Energy Physics - Theory · Physics 2017-07-26 Yan-Gang Miao , Zhen-Ming Xu

We calculate the total flux of Hawking radiation from Kerr-(anti)de Sitter black holes by using gravitational anomaly method developed in gr-qc/0502074. We consider the general Kerr-(anti)de Sitter black holes in arbitrary $D$ dimensions…

High Energy Physics - Theory · Physics 2008-11-26 Zhibo Xu , Bin Chen

The study of acoustic black holes has been undertaken to provide new insights about the role of high frequencies in black hole evaporation. Because of the infinite gravitational redshift from the event horizon, Hawking quanta emerge from…

General Relativity and Quantum Cosmology · Physics 2009-11-07 Renaud Parentani

We consider an approach to the Hawking effect which is free of the asymptotic behavior of the metric or matter fields, and which is not confined to one specific metric configuration. As a result, we find that for a wide class of spacetime…

General Relativity and Quantum Cosmology · Physics 2009-01-27 Ari Peltola

We study the scattering of gravity waves in longitudinal inhomogeneous stationary flows. When the flow becomes supercritical, counterflow propagating shallow waves are blocked and converted into deep waves. We show that the reflected waves…

Fluid Dynamics · Physics 2014-05-01 Antonin Coutant , Renaud Parentani

The quantum genesis of Hawking radiation is a long-standing puzzle in black hole physics. Semi-classically one can argue that the spectrum of radiation emitted by a black hole look very much sparse unlike what is expected from a thermal…

General Relativity and Quantum Cosmology · Physics 2016-02-05 Kinjalk Lochan , Sumanta Chakraborty

Hawking radiation is the proposed thermal black-body radiation of quantum nature emitted from a black hole. One common way to give an account of Hawking radiation is to consider a detector that follows a static trajectory in the vicinity of…

General Relativity and Quantum Cosmology · Physics 2024-04-08 Jerzy Paczos , Luis C. Barbado

We study the Hawking radiation from Rotating black holes from gravitational anomalies point of view. First, we show that the scalar field theory near the Kerr black hole horizon can be reduced to the 2-dimensional effective theory. Then,…

High Energy Physics - Theory · Physics 2009-11-11 Keiju Murata , Jiro Soda

We propose a setting that simulates Hawking radiation from an analogue bouncing geometry, i.e., a collapsing geometry that reverts its collapse after a finite time, in a setup consisting of a coplanar waveguide terminated in superconducting…

General Relativity and Quantum Cosmology · Physics 2024-05-03 Alberto García Martín-Caro , Gerardo García-Moreno , Javier Olmedo , Jose M. Sánchez Velázquez

A semi-classical reasoning leads to the non-commutativity of space and time coordinates near the horizon of static non-extreme black hole, and renders the classical horizon spreading to {\it Quantum Horizon} . In terms of the background…

General Relativity and Quantum Cosmology · Physics 2007-05-23 Mu-Lin Yan , Hua Bai

We analyze the physical consequences of scattering Hawking radiation emitted in the vicinity of the horizon of a Schwarzschild black hole. The Hawking radiation from the horizon becomes soft at a large distance away from the horizon due to…

High Energy Physics - Theory · Physics 2025-07-24 Peng Cheng

The Hawking radiation is one of the most interesting phenomena predicted by the theory of quantum field in curved space. The origin of Hawking radiation is closely related to the fact that a particle which marginally escapes from collapsing…

General Relativity and Quantum Cosmology · Physics 2009-10-31 Yoshiaki Himemoto , Takahiro Tanaka

Considering gravitational and gauge anomalies at the horizon, a new successful method that to derive Hawking radiations from black holes has been developed recently by Wilczek et al.. By using the dimensional reduction technique, we apply…

High Energy Physics - Theory · Physics 2009-05-01 Shao-Wen Wei , Ran Li , Yu-Xiao Liu , Ji-Rong Ren

It has recently been suggested [S. B. Giddings, Phys. Lett. B {\bf 754}, 39 (2016)] that the Hawking black-hole radiation spectrum originates from an effective quantum "atmosphere" which extends well outside the black-hole horizon. In…

General Relativity and Quantum Cosmology · Physics 2016-07-20 Shahar Hod

We consider quantum fields around uniformly accelerated black holes. At a particular value of the acceleration, the Bogolubov transformation which would be responsible for the late-time Hawking radiation, is found to be trivial. When this…

General Relativity and Quantum Cosmology · Physics 2009-10-28 Piljin Yi

We study the radiative properties of a spherical and singularity-free black-hole geometry recently proposed in the literature. Contrary to the Schwarzschild spacetime, this geometry is geodesically complete and regular, and, instead of the…

General Relativity and Quantum Cosmology · Physics 2025-07-23 Asier Alonso-Bardaji , David Brizuela , Marc Schneider