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| « Primordial non-Gaussianity: where do we stand? » |
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Sabino Matarrese |
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Primordial deviations of cosmological perturbations from a simple Gaussian distribution are not only possible but fairly generic if the generating mechanism for the fluctuations was inflation. Constraining and/or detecting primordial Non-Gaussianity therefore proves as powerful novel tool to explore the properties of the Universe at its birth.
I will review both the theoretical aspects related to the generation of non-Gaussian perturbations and the various ways to constrain their properties via the Cosmic Microwave Background anisotropies and the Large-Scale Structure of the Universe. |
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vendredi 4 mai 2012 - 11:00 Amphithéâtre Henri Mineur, Institut d'Astrophysique de Paris |
| Page web du séminaire / Seminar's webpage |