Kahler moduli double inflation

Details Kahler moduli double inflation Kahler moduli double inflation

2010-10-15

arxiv.org/abs/1010.3095v2

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

21 pages, 8 figures

Scientific paper

We show that double inflation is naturally realized in K\"ahler moduli inflation, which is caused by moduli associated with string compactification. We find that there is a small coupling between the two inflatons which leads to amplification of perturbations through parametric resonance in the intermediate stage of double inflation. This results in the appearance of a peak in the power spectrum of the primordial curvature perturbation. We numerically calculate the power spectrum and show that the power spectrum can have a peak on observationally interesing scales. We also compute the TT-spectrum of CMB based on the power spectrum with a peak and see that it better fits WMAP 7-years data.

Affiliated with

Also associated with

No associations

Rating

Kahler moduli double inflation does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Kahler moduli double inflation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Kahler moduli double inflation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-203561