Hawking Radiation of Linear Dilaton Black Holes in Various Theories

Details Hawking Radiation of Linear Dilaton Black Holes in Various Theories Hawking Radiation of Linear Dilaton Black Holes in Various Theories

2009-10-07

arxiv.org/abs/0910.1198v2

Int.J.Theor.Phys.48:3517-3525,2009

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

Typing mistakes in eq.32 have been corrected. The obtained radiation spectrum is pure thermal! Namely, the information is lost

Scientific paper

10.1007/s10773-009-0156-1

Using the Damour-Ruffini-Sannan, the Parikh-Wilczek and the thin film brick-wall models, we investigate the Hawking radiation of uncharged massive particles from 4-dimensional linear dilaton black holes, which are the solutions to Einstein-Maxwell-Dilaton, Einstein-Yang-Mills-Dilaton and Einstein-Yang-Mills-Born-Infeld-Dilaton theories. Our results show that the tunneling rate is related to the change of Bekenstein-Hawking entropy. Contrary to the many studies in the literature, here the emission spectrum is precisely thermal. This implies that the derived emission spectrum is not consistent with the unitarity of the quantum theory, which would possibly lead to the information loss.

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