Superradiance and Instability of Black Holes
Abstract
Description
We discuss the relation between the superradiance phenomenon and the instability of rotating black holes in higher dimensions. In particular, we point out that the superradiant instability of a massless scalar field around a simply rotating Kerr-adS black hole implies the gravitational instability of that black hole for tensor-type perturbations.
References added. 13 pages, 3 figures. A talk given at ICGA8 to be published in Prog. Theor. Phys. Supplement
References added. 13 pages, 3 figures. A talk given at ICGA8 to be published in Prog. Theor. Phys. Supplement