Inflationary models inducing non-Gaussian metric fluctuations

Details Inflationary models inducing non-Gaussian metric fluctuations Inflationary models inducing non-Gaussian metric fluctuations

2002-09-17

arxiv.org/abs/astro-ph/0209330v1

Phys.Rev.D67:121301,2003

Astronomy and Astrophysics

Astrophysics

4 pages, 7 figures

Scientific paper

10.1103/PhysRevD.67.121301

We construct explicit models of multi-field inflation in which the primordial metric fluctuations do not necessarily obey Gaussian statistics. These models are realizations of mechanisms in which non-Gaussianity is first generated by a light scalar field and then transferred into curvature fluctuations. The probability distribution functions of the metric perturbation at the end of inflation are computed. This provides a guideline for designing strategies to search for non-Gaussian signals in future CMB and large scale structure surveys.

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