String creation in cosmologies with a varying dilaton
arXiv:hep-th/0402156 · doi:10.1016/j.nuclphysb.2004.04.014
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.
15 pages, latex, one figure
References in corpus (2)
Cited by in corpus (15)
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