Primordial perturbation with a modified dispersion relation
Cosmology and Nongalactic Astrophysics
2009-09-01 v1 High Energy Physics - Theory
Abstract
In this paper we study the generation of primordial perturbation with a modified dispersion relation in various cosmological evolutions. We stress that the formation of the power spectrum is strongly dependent on the background. Working in a bounce model with a matter-like contracting phase, we obtain a red tilt spectrum due to the modified dispersion relation.
Cite
@article{arxiv.0906.3341,
title = {Primordial perturbation with a modified dispersion relation},
author = {Yi-Fu Cai and Xinmin Zhang},
journal= {arXiv preprint arXiv:0906.3341},
year = {2009}
}
Comments
6 pages, 2 figures, 1 table