Generating solutions via sigma-models
Abstract
We review recent development of solution-generating techniques for four and five-dimensional Einstein equations coupled to vector and scalar fields. This includes D=4 Einstein-Maxwell-dilaton-axion theory with multiple vector fields, D=5 Einstein-Maxwell gravity with the Chern-Simons term (minimal five-dimensional supergravity), and some other models which attracted attention in connection with black rings. The method is based on reduction to three-dimensional gravity coupled sigma-models with symmetric target spaces. Our recent results open a way to construct the general charged black rings in five-dimensional supergravity possibly coupled to vector multiplets.
Cite
@article{arxiv.0901.0098,
title = {Generating solutions via sigma-models},
author = {Dmitri V. Gal'tsov},
journal= {arXiv preprint arXiv:0901.0098},
year = {2009}
}
Comments
An updated version of the talk given at ICGA8 and published in the Proceedings. 14 pages, ptptex