Rolling Tachyons in String Cosmology
High Energy Physics - Theory
2010-04-05 v3 Astrophysics
High Energy Physics - Phenomenology
Abstract
We study the role of rolling tachyons in the cosmological model with dilatonic gravity. In the string frame, flat space solutions of both initial-stage and late-time are obtained in closed form. In the Einstein frame, we show that every expanding solution is decelerating.
Cite
@article{arxiv.hep-th/0210101,
title = {Rolling Tachyons in String Cosmology},
author = {Chanju Kim and Hang Bae Kim and Yoonbai Kim},
journal= {arXiv preprint arXiv:hep-th/0210101},
year = {2010}
}
Comments
More references added. A version to be published in Phys.Lett.B