Non-Gaussianity in a Matter Bounce
  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.
