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Black holes on thick branes

Roberto Emparan·Ruth Gregory·Caroline Santos
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Abstract

The interplay between topological defects (branes) and black holes has been a subject of recent study, motivated in part by interest in brane-world scenarios. In this paper we analyze in detail the description of a black hole bound to a domain wall (a two-brane in four dimensions), for which an exact description in the limit of zero wall thickness has been given recently. We show how to smooth this singular solution with a thick domain wall. We also show that charged extremal black holes of a size (roughly) smaller than the brane thickness expel the wall, thereby extending the phenomenon of flux expulsion. Finally, we analyze the process of black hole nucleation {\it on} a domain wall, and argue that it is preferred over a previously studied mechanism of black hole nucleation {\it away} from the wall.

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Roberto Emparan, Ruth Gregory, Caroline Santos. 2001-01-10. Black holes on thick branes. https://doi.org/10.1103/physrevd.63.104022

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