Curvature perturbation and waterfall dynamics in hybrid inflation

Details Curvature perturbation and waterfall dynamics in hybrid inflation Curvature perturbation and waterfall dynamics in hybrid inflation

2011-06-30

arxiv.org/abs/1106.6315v2

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

V2: Minor revisions, references added, JCAP published version

Scientific paper

We investigate the parameter spaces of hybrid inflation model with special attention paid to the dynamics of waterfall field and curvature perturbations induced from its quantum fluctuations. Depending on the inflaton field value at the time of phase transition and the sharpness of the phase transition inflation can have multiple extended stages. We find that for models with mild phase transition the induced curvature perturbation from the waterfall field is too large to satisfy the COBE normalization. We investigate the model parameter space where the curvature perturbations from the waterfall quantum fluctuations vary between the results of standard hybrid inflation and the results obtained here.

Affiliated with

Also associated with

No associations

Rating

Curvature perturbation and waterfall dynamics in hybrid 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 Curvature perturbation and waterfall dynamics in hybrid inflation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Curvature perturbation and waterfall dynamics in hybrid inflation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-35742