Early Universe Sources for Cosmic Microwave Background Non-Gaussianity
arXiv:astro-ph/0302396 · doi:10.1142/S0217751X02013319
Abstract
In the framework of inflationary models with non-vacuum initial states for cosmological perturbations, we study non-Gaussian signatures on the cosmic microwave background radiation produced by a broken-scale-invariant model which incorporates a feature at a privileged scale in the primordial power spectrum.
Contribution to the "Fifth Alexander Friedmann International Seminar on Gravitation and Cosmology", Joao Pessoa, Brazil, 2002