Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2005-12-30
Phys.Rev. D73 (2006) 064003; Erratum-ibid. D73 (2006) 069902
Physics
High Energy Physics
High Energy Physics - Theory
10 pages, no figure, Revtex4, typos removed, final version to appear in PRD
Scientific paper
10.1103/PhysRevD.73.064003
Recent work, which treats the Hawking radiation as a semi-classical tunneling process at the horizon of the Schwarzschild and Reissner-Nordstrom spacetimes, indicates that the exact radiant spectrum is no longer pure thermal after considering the black hole background as dynamical and the conservation of energy. In this paper, we extend the method to investigate Hawking radiation as massless particles tunneling across the event horizon of the Kerr black hole and that of charged particles from the Kerr-Newman black hole by taking into account the energy conservation, the angular momentum conservation, and the electric charge conservation. Our results show that when self-gravitation is considered, the tunneling rate is related to the change of Bekenstein-Hawking entropy and the derived emission spectrum deviates from the pure thermal spectrum, but is consistent with an underlying unitary theory.
Cai Xu
Jiang Qing-Quan
Wu Shuang-Qing
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