Pseudo-conformal Universe: late-time contraction and generation of tensor modes
Cosmology and Nongalactic Astrophysics
2015-06-12 v2 High Energy Physics - Theory
Abstract
We consider a bouncing Universe model which explains the flatness of the primordial scalar spectrum via complex scalar field that rolls down its negative quartic potential and dominates in the Universe. We show that in this model, there exists a rapid contraction regime of classical evolution. We calculate the power spectrum of tensor modes in this scenario. We find that it is blue and its amplitude is typically small, leading to mild constraints on the parameters of the model.
Keywords
Cite
@article{arxiv.1211.0262,
title = {Pseudo-conformal Universe: late-time contraction and generation of tensor modes},
author = {Sergey Mironov},
journal= {arXiv preprint arXiv:1211.0262},
year = {2015}
}
Comments
12 pages, 1 figure