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Birth of the Universe in string cosmology

M. Gasperini

gr-qcarXiv:gr-qc/9706037

Abstract

The decay of the string perturbative vacuum into our present cosmological state is associated to the transition from a phase of growing curvature and growing dilaton, to a phase of decreasing curvature and frozen dilaton. The possible approaches to a classical and quantum description of such a transition are introduced and briefly discussed.

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