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arXiv · hep-th/0002070

Initial Conditions and the Structure of the Singularity in Pre-Big-Bang Cosmology

A. Feinstein·K. E. Kunze·M. A. Vazquez-Mozo
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Abstract

We propose a picture, within the pre-big-bang approach, in which the universe emerges from a bath of plane gravitational and dilatonic waves. The waves interact gravitationally breaking the exact plane symmetry and lead generically to gravitational collapse resulting in a singularity with the Kasner-like structure. The analytic relations between the Kasner exponents and the initial data are explicitly evaluated and it is shown that pre-big-bang inflation may occur within a dense set of initial data. Finally, we argue that plane waves carry zero gravitational entropy and thus are, from a thermodynamical point of view, good candidates for the universe to emerge from.

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A. Feinstein, K. E. Kunze, M. A. Vazquez-Mozo. 2000-09-18. Initial Conditions and the Structure of the Singularity in Pre-Big-Bang Cosmology. https://doi.org/10.1088/0264-9381%2F17%2F18%2F301

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