PREPRINT
F58382D5-2026-4D7F-8583-B7E95A302AF2

Initial Conditions in Pre-Big Bang

Nemanja Kaloper
arXiv:hep-th/9808063

Submitted on 11 August 1998

Abstract

This note is a summary of the work reported in hep-th/9801073. We give a brief discussion of the fine tuning problem in pre-big bang cosmology. We use the flatness problem as our test case, and in addition to the exact numerical limits on initial conditions, we highlight the differences between pre-big bang and standard inflation. The main difference is that in pre-big bang the universe must be smooth and flat in an exponentially large domain already at the beginning of the dilaton-driven inflation.

Preprint

Comment: 5 pages, Latex with sprocl.sty, based on talks given at PASCOS-98 and CAPP-98

Subjects: High Energy Physics - Theory; Astrophysics; General Relativity and Quantum Cosmology; High Energy Physics - Phenomenology

URL: https://arxiv.org/abs/hep-th/9808063