Phantom scalar emission in the Kerr black hole spacetime

Details Phantom scalar emission in the Kerr black hole spacetime Phantom scalar emission in the Kerr black hole spacetime

2008-09-18

arxiv.org/abs/0809.3164v2

Class.Quant.Grav.27:045003,2010

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

11 pages, 6 figures, a revised version accepted for publication in CQG

Scientific paper

10.1088/0264-9381/27/4/045003

We study the absorption probability and Hawking radiation spectra of a phantom scalar field in the Kerr black hole spacetime. We find that the presence of the negative kinetic energy terms modifies the standard results in the greybody factor, super-radiance and Hawking radiation. Comparing with the usual scalar particle, the phantom scalar emission is enhanced in the black hole spacetime.

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