Semiclassical Methods for Hawking Radiation from a Vaidya Black Hole

Details Semiclassical Methods for Hawking Radiation from a Vaidya Black Hole Semiclassical Methods for Hawking Radiation from a Vaidya Black Hole

2009-08-20

arxiv.org/abs/0908.2895v2

Int.J.Mod.Phys.A25:145-153,2010

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

REVTeX 4, 11 pages, no figures, accepted for publication in IJMPA; v2: eq.5 is corrected

Scientific paper

10.1142/S0217751X1004749X

We derive the general form of Hawking temperature for Vaidya black hole in the tunneling pictures. This kind of black hole is regarded as the description of a more realistic one since it's time dependent decreasing mass due to the evaporation process. Clearly, the temperature would be time dependent as our findings. We use the semiclassical methods, namely radial null geodesic and complex paths methods. Both methods are found to give the same results. Then, we discuss the possible form of corresponding entropy.

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