Cosmology of Rolling Tachyon
High Energy Physics - Theory
2007-05-23 v1
Abstract
We study dynamics of rolling tachyon and Abelian gauge field on unstable D-branes, of which effective action is given by Born-Infeld type nonlocal action. Possible cosmological evolutions are also discussed. In the Einstein frame of string cosmology, every expanding flat universe is proven to be decelerating.
Cite
@article{arxiv.hep-th/0301142,
title = {Cosmology of Rolling Tachyon},
author = {Chanju Kim and Hang Bae Kim and Yoonbai Kim and O-Kab Kwon},
journal= {arXiv preprint arXiv:hep-th/0301142},
year = {2007}
}
Comments
LaTex, 27 pages, 2 figures, Proceedings of Pac Memorial Symposium on Theoretical Physics, pp.209--239 (Chungbum Publishing House, Seoul). Talk was given by Y. Kim