Singularity-free cosmological solutions of the superstring effective action

Abstract

We study the cosmological solutions of the one loop corrected superstring effective action, in a Friedmann-Robertson-Walker background, and in the presence of the dilaton and modulus fields. A particularly interesting class of solutions is found which avoid the initial singularity and are consistent with the perturbative treatment of the effective action.

20 pages, plain tex, 7 figures available in postscript files upon request, CPTH-A239.0593

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