Phantom Black Holes in Einstein-Maxwell-Dilaton Theory
High Energy Physics - Theory
2009-11-06 v2 High Energy Astrophysical Phenomena
General Relativity and Quantum Cosmology
Abstract
We obtain the general static, spherically symmetric solution for the Einstein-Maxwell-dilaton system in four dimensions with a phantom coupling for the dilaton and/or the Maxwell field. This leads to new classes of black hole solutions, with single or multiple horizons. Using the geodesic equations, we analyse the corresponding Penrose diagrams revealing, in some cases, new causal structures.
Cite
@article{arxiv.0901.4543,
title = {Phantom Black Holes in Einstein-Maxwell-Dilaton Theory},
author = {Gerard Clement and Julio C. Fabris and Manuel Eleuterio Rodrigues},
journal= {arXiv preprint arXiv:0901.4543},
year = {2009}
}
Comments
Latex file, 32 pages, 15 figures in eps format. Typo corrected in Eq. (3.18)