Axions and the Graceful Exit Problem in String Cosmology

Details Axions and the Graceful Exit Problem in String Cosmology Axions and the Graceful Exit Problem in String Cosmology

1995-10-17

arxiv.org/abs/hep-th/9510117v1

Phys.Lett.B371:34-40,1996

Physics

High Energy Physics

High Energy Physics - Theory

12 pages, latex, no figures

Scientific paper

10.1016/0370-2693(95)01577-9

We reexamine the graceful exit problem in the Pre-Big-Bang inflationary
scenario. The dilaton-gravity action is generalized by adding the axion and a
general axion/dilaton potential. We provide a phase space analysis of the
dynamics which leads us to extend the previous no-go theorem and rule out the
branch change necessary for graceful exit in this context.

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