Fixed scalars and suppression of Hawking evaporation
- 15 July 1997
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review D
- Vol. 56 (2) , 983-986
- https://doi.org/10.1103/physrevd.56.983
Abstract
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.Keywords
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