Non-Gaussianity in a Matter Bounce

Details Non-Gaussianity in a Matter Bounce Non-Gaussianity in a Matter Bounce

2009-03-03

arxiv.org/abs/0903.0631v2

JCAP 0905:011,2009

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

10 pages, 6 figures, 2 references added

Scientific paper

10.1088/1475-7516/2009/05/011

A nonsingular bouncing cosmology in which the scales of interest today exit the Hubble radius in a matter-dominated contracting phase yields an alternative to inflation for producing a scale-invariant spectrum of adiabatic cosmological fluctuations. In this paper we identify signatures in the non-Gaussianities of the fluctuations which are specific to this scenario and allow it to be distinguished from the results of inflationary models.

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