Short Distance Physics and Initial State Effects on the CMB Power Spectrum
High Energy Physics - Theory
2008-12-18 v2
Abstract
We investigate a modification in the action of inflaton due to noncommutativity leads to a nonstandard initial vacuum and oscillatory corrections in the initial power spectrum. We show that the presence of these oscillations causes a drop in the WMAP about . As a bonus, from the parameter estimation done in this work, we show that the noncommutative parameters can be precisely bound to GeV or GeV depending on the inflation scale.
Cite
@article{arxiv.0809.4312,
title = {Short Distance Physics and Initial State Effects on the CMB Power Spectrum},
author = {Moslem Zarei},
journal= {arXiv preprint arXiv:0809.4312},
year = {2008}
}
Comments
29 pages, 5 figures, v2