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arXiv · 0903.0631

Non-Gaussianity in a Matter Bounce

Yi-Fu Cai·Wei Xue·Robert Brandenberger·Xinmin Zhang
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Abstract

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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Yi-Fu Cai, Wei Xue, Robert Brandenberger, Xinmin Zhang. 2009-03-08. Non-Gaussianity in a Matter Bounce. https://doi.org/10.1088/1475-7516%2F2009%2F05%2F011

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