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The dynamics of spinning test bodies, moving in rotating black hole (Kerr, Bardeen-like and Hayward-like) spacetimes, are investigated. In Kerr spacetime, all the spherical, zoom-whirl and unbound orbits are considered numerically. Along…

General Relativity and Quantum Cosmology · Physics 2022-02-10 Balázs Mikóczi , Zoltán Keresztes

In this work, we study the `scalar channel' of the emission of Hawking radiation from a (4+n)-dimensional, rotating black hole on the brane. We numerically solve both the radial and angular part of the equation of motion for the scalar…

High Energy Physics - Theory · Physics 2009-11-11 G. Duffy , C. Harris , P. Kanti , E. Winstanley

We investigate Hawking radiation in noncommutative spacetime. For a dynamical black hole formed by the collapse of a matter shell, we demonstrate that spacetime noncommutativity modifies the interaction between the radiation field and the…

High Energy Physics - Theory · Physics 2026-04-17 Pei-Ming Ho , Wei-Hsiang Shao , Takuya Yoda

We analyze the correlations functions across the horizon in Hawking black hole radiation to reveal the correlations between Hawking particles and their partners. The effects of the underlying space-time on this are shown in various examples…

General Relativity and Quantum Cosmology · Physics 2023-09-28 Roberto Balbinot , Alessandro Fabbri

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

The purely thermal nature of Hawking radiation from evaporating black holes leads to the information loss paradox. A possible route to its resolution could be if (enough) correlations are shown to be present in the radiation emitted from…

General Relativity and Quantum Cosmology · Physics 2017-07-25 C. Fairoos , Sudipta Sarkar , K. P. Yogendran

We investigate the three-dimensional, general relativistic Poynting-Robertson effect in the case of rigidly rotating spherical source which emits radiation radially in the local comoving frame. Such radiation field is meant to approximate…

General Relativity and Quantum Cosmology · Physics 2019-11-27 Pavel Bakala , Vittorio De Falco , Emmanuele Battista , Kateřina Goluchová , Debora Lančová , Maurizio Falanga , Luigi Stella

This is the sequel to the first paper of the series, where we have discussed the Hawking radiation from five-dimensional rotating black holes for spin 0, 1/2 and 1 brane fields in the low frequency regime. We consider the emission of a…

High Energy Physics - Theory · Physics 2009-11-11 Daisuke Ida , Kin-ya Oda , Seong Chan Park

We study analytically quantum tunneling of relativistic and non-relativistic particles at both Killing and universal horizons of Einstein-Maxwell-aether black holes, after high-order curvature corrections are taken into account, for which…

General Relativity and Quantum Cosmology · Physics 2016-11-23 Chikun Ding , Anzhong Wang , Xinwen Wang , Tao Zhu

The (1, 0)+(0, 1) representation of the group SL(2, C) provides a six-component spinor equivalent to the electromagnetic field tensor. By means of the (1, 0)+(0, 1) description, one can treat the photon field in curved spacetime via spin…

General Relativity and Quantum Cosmology · Physics 2016-05-23 Zhi-Yong Wang , Cai-Dong Xiong , Qi Qiu , Yun-Xiang Wang , Shuang-Jin Shi

The periapsis shift (PS) of spinning test particles in the equatorial plane of arbitrary stationary and axisymmetric spacetime is studied using the post-Newtonian method. The result is expressed as a half-integer power series of $M/p$ where…

General Relativity and Quantum Cosmology · Physics 2024-01-30 Shaofei Xu , Junji Jia

When a particle moves around a Kerr black hole, it radiates gravitational waves.Some of these waves are absorbed by the black hole. We calculate such absorption of gravitational waves induced by a particle of mass mu in a circular orbit on…

General Relativity and Quantum Cosmology · Physics 2009-10-30 Hideyuki Tagoshi , Shuhei Mano , Eiichi Takasugi

The influence of spin in a system of classical particles on the propagation of gravitational waves is analyzed in the cosmological context of primordial thermal equilibrium. On a flat Friedmann-Robertson-Walker metric, when the precession…

General Relativity and Quantum Cosmology · Physics 2008-11-26 Irene Milillo , Massimiliano Lattanzi , Giovanni Montani

The paper deals with Hawking radiation from a general static black hole due to tunnelling of particle having non-zero mass. Due to complicated calculations, quantum corrections are calculated upto first order. The results are compared with…

General Relativity and Quantum Cosmology · Physics 2012-10-01 Nairwita Mazumder , Ritabrata Biswas , Subenoy Chakraborty

Numerical studies of black hole greybody factors indicate that Hawking emission from a highly rotating black hole is strongly spin dependent, with particles of highest spin (gravitons) dominating the energy spectrum. So far, there has been…

General Relativity and Quantum Cosmology · Physics 2015-05-19 De-Chang Dai , Dejan Stojkovic

We study the evolution of a Kerr black hole emitting scalar radiation via the Hawking process. We show that the rate at which mass and angular momentum are lost by the black hole leads to a final evolutionary state with nonzero angular…

General Relativity and Quantum Cosmology · Physics 2009-10-30 Chris M. Chambers , William A. Hiscock , Brett Taylor

The present works complements and expands a previous one, focused on the emission of scalar fields by a (4+n)-dimensional rotating black hole on the brane, by studying the emission of gauge fields on the brane from a similar black hole. A…

High Energy Physics - Theory · Physics 2010-12-23 M. Casals , P. Kanti , E. Winstanley

Scalar radiation, represented by a massless scalar field in a Robertson-Walker metric, is taken into account. By using a weak non minimum vacuum definition, the radiation temperature as a time dependent function is obtained. When the…

High Energy Physics - Theory · Physics 2007-05-23 Carlos E. Laciana

Extending researches on Hawking radiation to conformal gravity theory, we discuss Hawking radiation of different particles across charged rotating AdS black holes in conformal gravity, including charged massive particles, complex scalar and…

High Energy Physics - Theory · Physics 2017-05-16 Gao-Ming Deng

Hawking radiation is one essential property of quantum black hole. It results in the information loss paradox, and give important clue to the unification of quantum mechanics and general relativity. In the previous works, the boundary…

General Relativity and Quantum Cosmology · Physics 2023-03-24 Jingbo Wang