String creation in cosmologies with a varying dilaton

Joshua J. Friess, Steven S. Gubser, Indrajit Mitra

Research output: Contribution to journalArticle

15 Scopus citations

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.

Original languageEnglish (US)
Pages (from-to)243-256
Number of pages14
JournalNuclear Physics B
Volume689
Issue number3
DOIs
StatePublished - Jun 28 2004

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

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