A Multiple Step-like Spectrum of Primordial Perturbation
High Energy Physics - Theory
2015-05-28 v2 General Relativity and Quantum Cosmology
Abstract
We show that if the inflaton effective potential has multiple discontinuous points in its first derivative, the spectrum of primordial perturbation will be multiple step-like. We give a general analysis by applying a simple model. In principle, as long as the height of step is low enough, the result of spectrum will be consistent with observations.
Keywords
Cite
@article{arxiv.1106.5608,
title = {A Multiple Step-like Spectrum of Primordial Perturbation},
author = {Jie Liu and Yun-Song Piao},
journal= {arXiv preprint arXiv:1106.5608},
year = {2015}
}
Comments
minor changes and Refs. added, publish in PLB