Time Dependent Cosmologies and Their Duals
High Energy Physics - Theory
2008-11-26 v3
Abstract
We construct a family of solutions in IIB supergravity theory. These are time dependent or depend on a light-like coordinate and can be thought of as deformations of AdS_5 x S^5. Several of the solutions have singularities. The light-like solutions preserve 8 supersymmetries. We argue that these solutions are dual to the N=4 gauge theory in a 3+1 dimensional spacetime with a metric and a gauge coupling that is varying with time or the light-like direction respectively. This identification allows us to map the question of singularity resolution to the dual gauge theory.
Cite
@article{arxiv.hep-th/0602107,
title = {Time Dependent Cosmologies and Their Duals},
author = {Sumit R. Das and Jeremy Michelson and K. Narayan and Sandip P. Trivedi},
journal= {arXiv preprint arXiv:hep-th/0602107},
year = {2008}
}
Comments
13 pages REVTeX and AMSLaTeX. v2: corrected typos and made some clarifications; reference added; v3: more clarifications, references added