Non-existence of New Quantum Ergosphere Effect of a Vaidya-type Black Hole

Details Non-existence of New Quantum Ergosphere Effect of a Vaidya-type Black Hole Non-existence of New Quantum Ergosphere Effect of a Vaidya-type Black Hole

2001-08-07

arxiv.org/abs/gr-qc/0108019v1

Mod.Phys.Lett. A16 (2001) 1549-1558

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

Latex, 9 pages, no figure, submitted to Mod. Phys. Lett. A

Scientific paper

10.1142/S0217732301004789

Hawking evaporation of Dirac particles and scalar fields in a Vaidya-type black hole is investigated by the method of generalized tortoise coordinate transformation. It is shown that Hawking radiation of Dirac particles does not exist for $P_1, Q_2$ components but for $P_2, Q_1$ components in any Vaidya-type black holes. Both the location and the temperature of the event horizon change with time. The thermal radiation spectrum of Dirac particles is the same as that of Klein-Gordon particles. We demonstrates that there is no new quantum ergosphere effect in the thermal radiation of Dirac particles in any spherically symmetry black holes.

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