Cosmological perturbations and noncommutative tachyon inflation
Astrophysics
2009-11-10 v1
Abstract
The motivation for studying the rolling tachyon and non-commutative inflation comes from string theory. In the tachyon inflation scenario, metric perturbations are created by tachyon field fluctuations during inflation. We drive the exact mode equation for scalar perturbation of the metric and investigate the cosmological perturbations in the commutative and non-commutative inflationary spacetime driven by the tachyon field which have a Born-Infeld Lagrangian.
Keywords
Cite
@article{arxiv.astro-ph/0402063,
title = {Cosmological perturbations and noncommutative tachyon inflation},
author = {Dao-jun Liu and Xin-zhou Li},
journal= {arXiv preprint arXiv:astro-ph/0402063},
year = {2009}
}
Comments
6 two-column pages, no figure