Non-gaussianity of large-scale cosmological perturbations

Monday 22  September, 2:30 pm, Curia II
Andrei Gruzinov (NYU)
ag92@nyu.edu

We calculated the large-scale density perturbations in terms of
primordial perturbations up to second order. Our formula should allow
accurate determination of the primordial (inflationary) non-Gaussianity.
I will also talk about theoretical predictions of the primordial
non-Gaussianity.

refs:
astro-ph/0308033: Non-Gaussianity of Large-Scale Cosmological Perturbations
astro-ph/0305548: Cosmological Perturbations From Inhomogeneous Reheating,                                                Freeze-Out, and Mass Domination
astro-ph/0303591: A new mechanism for generating density perturbations from inflation