String creation in cosmologies with a varying dilaton
High Energy Physics - Theory
2010-04-05 v1
Abstract
FRW solutions of the string theory low-energy effective actions are described, yielding a dilaton which first decreases and then increases. We study string creation in these backgrounds and find an exponential divergence due to an initial space-like singularity. We conjecture that this singularity may be removed by the effects of back-reaction, leading to a solution which at early times is de Sitter space.
Keywords
Cite
@article{arxiv.hep-th/0402156,
title = {String creation in cosmologies with a varying dilaton},
author = {Joshua J. Friess and Steven S. Gubser and Indrajit Mitra},
journal= {arXiv preprint arXiv:hep-th/0402156},
year = {2010}
}
Comments
15 pages, latex, one figure