Godel-type Metrics in Various Dimensions II: Inclusion of a Dilaton Field
Abstract
This is the continuation of an earlier work where Godel-type metrics were defined and used for producing new solutions in various dimensions. Here a simplifying technical assumption is relaxed which, among other things, basically amounts to introducing a dilaton field to the models considered. It is explicitly shown that the conformally transformed Godel-type metrics can be used in solving a rather general class of Einstein-Maxwell-dilaton-3-form field theories in D >= 6 dimensions. All field equations can be reduced to a simple "Maxwell equation" in the relevant (D-1)-dimensional Riemannian background due to a neat construction that relates the matter fields. These tools are then used in obtaining exact solutions to the bosonic parts of various supergravity theories. It is shown that there is a wide range of suitable backgrounds that can be used in producing solutions. For the specific case of (D-1)-dimensional trivially flat Riemannian backgrounds, the D-dimensional generalizations of the well known Majumdar-Papapetrou metrics of general relativity arise naturally.
Keywords
Cite
@article{arxiv.hep-th/0505268,
title = {Godel-type Metrics in Various Dimensions II: Inclusion of a Dilaton Field},
author = {Metin Gurses and Ozgur Sarioglu},
journal= {arXiv preprint arXiv:hep-th/0505268},
year = {2009}
}
Comments
REVTeX4, 17 pp., no figures, a few clarifying remarks added and grammatical errors corrected