Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
1997-08-08
Phys.Rev. D57 (1998) 712-724
Physics
High Energy Physics
High Energy Physics - Theory
17 pages including 9 figures, RevTeX. Uses epsfig
Scientific paper
10.1103/PhysRevD.57.712
We construct, for the first time, a model of graceful exit transition from a dilaton-driven inflationary phase to a decelerated Friedman-Robertson-Walker era. Exploiting a demonstration that classical corrections can stabilize a high curvature string phase while the evolution is still in the weakly coupled regime, we show that if additional terms of the type that may result from quantum corrections to the string effective action exist, and induce violation of the null energy condition, then evolution towards a decelerated Friedman-Robertson-Walker phase is possible. We also observe that stabilizing the dilaton at a fixed value, either by capture in a potential minimum or by radiation production, may require that these quantum corrections are turned off, perhaps by non-perturbative effects or higher order contributions which overturn the null energy condition violation.
Brustein Ram
Madden Richard
No associations
LandOfFree
A Model of Graceful Exit in String Cosmology does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with A Model of Graceful Exit in String Cosmology, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A Model of Graceful Exit in String Cosmology will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-411818