Non-gaussianity and cosmic uncertainty in curvaton-type models

Feb, 2006
18 pages
Published in:
  • JCAP 06 (2006) 015
e-Print:

Citations per year

20062011201620212024024681012
Abstract: (arXiv)
In curvaton-type models, observable non-gaussianity of the curvature perturbation would come from a contribution of the form (δσ)2(\delta\sigma)^2, where δσ\delta\sigma is gaussian. I analyse this situation allowing δσ\delta\sigma to be scale-dependent. The actual curvaton model is considered in more detail than before, including its cosmic uncertainty and anthropic status. The status of curvaton-type models after WMAP year three data is considered.
Note:
  • 21 pages, wmap year three data considered
  • curvaton
  • curvature: perturbation
  • perturbation: spectrum
  • cosmic background radiation
  • correlation function
  • inflation
  • anthropic principle
  • bibliography