Blue spectral inflation
Astrophysics
2008-09-26 v1
Abstract
We reconsider the nonlinear second order Abel equation of Stewart and Lyth, which follows from a nonlinear second order slow-roll approximation. We find a new eigenvalue spectrum in the blue regime. Some of the discrete values of the spectral index n_s have consistent fits to the cumulative COBE data as well as to recent ground-base CMB experiments.
Keywords
Cite
@article{arxiv.0809.4462,
title = {Blue spectral inflation},
author = {Franz E. Schunck and Eckehard W. Mielke},
journal= {arXiv preprint arXiv:0809.4462},
year = {2008}
}