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arXiv · hep-th/0402156

String creation in cosmologies with a varying dilaton

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

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Joshua J. Friess, Steven S. Gubser, Indrajit Mitra. 2004-02-19. String creation in cosmologies with a varying dilaton. https://doi.org/10.1016/j.nuclphysb.2004.04.014

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