Comment on "Nongaussian Isocurvature Perturbations from Inflation"
Astrophysics
2007-05-23 v1 High Energy Physics - Phenomenology
High Energy Physics - Theory
Abstract
In a recent paper of Linde and Mukhanov, a hybrid inflationary model with nongaussian density perturbations and a ``blue'' spectral index n > 1 was presented. In this comment we point out that this model can be considered as a particular realization of the general framework for the spectrum and statistics of the CMBR we proposed in astro-ph/9611208, based on the hypothesis of conformal invariance. The implication of this hypothesis is that density perturbations are nongaussian with a spectral index n > 1.
Cite
@article{arxiv.astro-ph/9705200,
title = {Comment on "Nongaussian Isocurvature Perturbations from Inflation"},
author = {Ignatios Antoniadis and Pawel O. Mazur and Emil Mottola},
journal= {arXiv preprint arXiv:astro-ph/9705200},
year = {2007}
}
Comments
1 page, Revtex file