Initial Conditions in Pre-Big Bang
高能物理 - 理论
2007-05-23 v1 天体物理学
广义相对论与量子宇宙学
高能物理 - 唯象学
摘要
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.
引用
@article{arxiv.hep-th/9808063,
title = {Initial Conditions in Pre-Big Bang},
author = {Nemanja Kaloper},
journal= {arXiv preprint arXiv:hep-th/9808063},
year = {2007}
}
备注
5 pages, Latex with sprocl.sty, based on talks given at PASCOS-98 and CAPP-98