COBE constraints on inflation models with a massive non-minimal scalar field
Abstract
We derive power spectra of the scalar- and tensor-type structures generated in an inflation model based on a massive non-minimally coupled scalar field with the strong coupling assumption. We make analyses in both the original-frame and the conformally transformed Einstein-frame. We derive contributions of both structures to the anisotropy of the cosmic microwave background radiation, and compare the contributions with the four-year COBE-DMR data. Previous study showed that sufficient amount of inflation requires a small coupling parameter. In such a case the spectra become near Zeldovich spectra, and the gravitational wave contribution becomes negligible compared with the scalar-type contribution which is testable in future CMBR experiments.
Cite
@article{arxiv.astro-ph/9908340,
title = {COBE constraints on inflation models with a massive non-minimal scalar field},
author = {J. Hwang and H. Noh},
journal= {arXiv preprint arXiv:astro-ph/9908340},
year = {2009}
}
Comments
4 pages, no figure, To appear in Phys. Rev. D