Black Holes and Attractors in Supergravity
Abstract
We discuss some of the basic features of extremal black holes in four-dimensional extended supergravities. Firstly, all regular solutions display an attractor behavior for the scalar field evolution towards the black hole horizon. Secondly, they can be obtained by solving first order flow equations even when they are not supersymmetric, provided one identifies a suitable superpotential W which also gives the black hole entropy at the horizon and its ADM mass at spatial infinity. We focus on N=8 supergravity and we review the basic role played by U-duality of the underlying supergravity in determining the attractors, their entropies, their masses and in classifying both regular and singular extremal black holes.
Keywords
Cite
@article{arxiv.1009.4175,
title = {Black Holes and Attractors in Supergravity},
author = {Anna Ceresole and Sergio Ferrara},
journal= {arXiv preprint arXiv:1009.4175},
year = {2017}
}
Comments
Contribution to the Proceedings of the Conference in Honor of Murray Gell-Mann's 80th Birthday, Singapore, 24th-26th February 2010 (talk delivered by S. Ferrara); 15 pages