A New Approach to String Cosmology
High Energy Physics - Theory
2010-02-03 v3 General Relativity and Quantum Cosmology
Abstract
We discuss quotients of Anti-de Sitter (AdS) spacetime by a discrete group in light of the AdS-CFT correspondence. Some quotients describe closed universes which expand from zero volume to a maximum size and then contract. Maldacena's conjecture suggests that they should be represented in string theory by suitable quotients of the boundary conformal field theory. We discuss the required identifications, and construct the states associated with the linearized supergravity modes in the cosmological background.
Cite
@article{arxiv.hep-th/9805207,
title = {A New Approach to String Cosmology},
author = {Gary T. Horowitz and Donald Marolf},
journal= {arXiv preprint arXiv:hep-th/9805207},
year = {2010}
}
Comments
18 pages, 4 figures, V2: discussion of the wormhole spacetimes corrected, V3: Reference Added