Inflationary models inducing non-Gaussian metric fluctuations

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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.
4 pages, 7 figures

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Astrophysics, General Relativity and Quantum Cosmology, High Energy Physics - Phenomenology

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http://salesiana.dossiersoluciones.com/handle/123456789/196571

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/astro-ph/0209330
 http://arxiv.org/abs/astro-ph/0209330
 Phys.Rev.D67:121301,2003
 doi:10.1103/PhysRevD.67.121301

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arXiv