Black Hole Evaporation in a Noncommutative Charged Vaidya Model

Details Black Hole Evaporation in a Noncommutative Charged Vaidya Model Black Hole Evaporation in a Noncommutative Charged Vaidya Model

2012-01-16

arxiv.org/abs/1201.3171v1

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

25 pages, 36 figures, accepted for publication in J. Exp. Theor. Phys

Scientific paper

The aim of this paper is to study the black hole evaporation and Hawking radiation for a noncommutative charged Vaidya black hole. For this purpose, we determine spherically symmetric charged Vaidya model and then formulate a noncommutative Reissner-Nordstr$\ddot{o}$m-like solution of this model which leads to an exact $(t-r)$ dependent metric. The behavior of temporal component of this metric and the corresponding Hawking temperature is investigated. The results are shown in the form of graphs. Further, we examine the tunneling process of the charged massive particles through the quantum horizon. It is found that the tunneling amplitude is modified due to noncommutativity. Also, it turns out that black hole evaporates completely in the limits of large time and horizon radius. The effect of charge is to reduce the temperature from maximum value to zero. It is mentioned here that the final stage of black hole evaporation turns out to be a naked singularity.

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