Fixed Scalars and Suppression of Hawking Evaporation

Details Fixed Scalars and Suppression of Hawking Evaporation Fixed Scalars and Suppression of Hawking Evaporation

1996-08-20

arxiv.org/abs/hep-th/9608126v1

Phys.Rev. D56 (1997) 983-986

Physics

High Energy Physics

High Energy Physics - Theory

10 pages, latex

Scientific paper

10.1103/PhysRevD.56.983

For an extreme charged black hole some scalars take on a fixed value at the horizon determined by the charges alone. We call them fixed scalars. We find the absorption cross section for a low frequency wave of a fixed scalar to be proportional to the square of the frequency. This implies a strong suppression of the Hawking radiation near extremality. We compute the coefficient of proportionality for a specific model.

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