String Cosmology: An Update

Details String Cosmology: An Update String Cosmology: An Update

1998-01-04

arxiv.org/abs/hep-th/9801008v1

Physics

High Energy Physics

High Energy Physics - Theory

11 pages, 1 eps figure, Latex, based on talk at COSMO97

Scientific paper

A string cosmology scenario ("pre-big-bang") postulates that the evolution of the Universe starts from a state of very small curvature and coupling, undergoes a long phase of dilaton-driven kinetic inflation and at some later time joins smoothly standard radiation dominated cosmological evolution, thus giving rise to a singularity free inflationary cosmology. I report on recent progress in understanding some outstanding issues such as initial conditions, graceful exit transition and generation of inhomogeneity perturbations.

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