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Solving the graceful exit problem in superstring cosmology
Authors:Sukanta Bose
Institution:(1) Inter-University Centre for Astronomy and Astrophysics, Ganeshkhind, Post Bag 4, 411007 Pune, India
Abstract:We briefly review the status of the “graceful exit” problem in superstring cosmology and present a possible resolution. It is shown that there exists a solution to this problem in two-dimensional dilaton gravity provided quantum corrections are incorporated. This is similar to the recently proposed solution of Rey. However, unlike in his case, in our one-loop corrected model the graceful exit problem is solved for any finite number of massless scalar matter fields present in the theory.
Keywords:Dilaton gravity  superstring cosmology  back reaction  graceful exit
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