CMB Angular Power Spectrum from Correlated Primordial Fluctuation
Cosmology and Nongalactic Astrophysics
2009-03-12 v1
Abstract
The usual inflationary scenario predicts a Gaussian random primordial density fluctuation, different Fourier modes of which do not correlate with each other. In this paper we propose a correlation between these different modes. A simple case is that these different Fourier modes correlate with each other following a Gaussian function. For such a primordial density fluctuation we calculate the CMB angular power spectrum and find that its amplitude decreases but the decrease is different for different . This feature can be used to constrain the the correlation strength from the real data.
Cite
@article{arxiv.0902.2448,
title = {CMB Angular Power Spectrum from Correlated Primordial Fluctuation},
author = {B. Yu and T. Lu},
journal= {arXiv preprint arXiv:0902.2448},
year = {2009}
}
Comments
accepted by PRD, 5 pages, 6 figures