Ekpyrotic Nongaussianity: A Review

Ekpyrotic models and their cyclic extensions solve the standard cosmological flatness, horizon, and homogeneity puzzles by postulating a slowly contracting phase of the universe prior to the big bang. This ekpyrotic phase also manages to produce a nearly scale-invariant spectrum of scalar density fl...

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Bibliographic Details
Main Author: Jean-Luc Lehners
Format: Article
Language:English
Published: Hindawi Limited 2010-01-01
Series:Advances in Astronomy
Online Access:http://dx.doi.org/10.1155/2010/903907