Backreactions in Superinflationary Cosmologies

Details Backreactions in Superinflationary Cosmologies Backreactions in Superinflationary Cosmologies

1998-01-02

arxiv.org/abs/hep-ph/9801211v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

3 pages, Latex, sprocl.sty included, Proceedings of Cosmo'97, Charlotte Mason College, Ambleside, Lancashire, England, 15-19 S

Scientific paper

We examine Jordan-Brans-Dicke theories with a linear potential for the scalar field by means of a stochastic approach. The backreaction of the scalar field fluctuations on the classical background is described. The analysis is concentrated on those values of the Jordan-Brans-Dicke parameter which predict a superinflationary pre-big-bang branch. The graceful exit problem present in these theories is discussed.

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