Phantom Black Holes and Sigma Models
High Energy Physics - Theory
2011-06-13 v1 Cosmology and Nongalactic Astrophysics
General Relativity and Quantum Cosmology
Abstract
We construct static multicenter solutions of phantom Einstein-Maxwell-dilaton theory from null geodesics of the target space, leading to regular black holes without spatial symmetry for certain discrete values of the dilaton coupling constant. We also discuss the three-dimensional gravitating sigma models obtained by reduction of phantom Einstein-Maxwell, phantom Kaluza-Klein and phantom Einstein-Maxwell-dilaton-axion theories. In each case, we generate by group transformations phantom charged black hole solutions from a neutral seed.
Keywords
Cite
@article{arxiv.1102.4093,
title = {Phantom Black Holes and Sigma Models},
author = {Mustapha Azreg-Aïnou and Gérard Clément and Júlio C. Fabris and Manuel E. Rodrigues},
journal= {arXiv preprint arXiv:1102.4093},
year = {2011}
}
Comments
19 pages