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PERIMETER INSTITUTE RECORDED SEMINAR ARCHIVE

PIRSA:21030042  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Primordial non-gaussianities from consistency relations: a proof of principle
Speaker(s): Angelo Esposito
Abstract:

In this talk I will discuss the application of the so-called “consistency relations” for large scale structures to the study of primordial non-Gaussianities of the local f_NL type. I will first introduce the consistency relations themselves, commenting on some important aspects and underlying assumptions. I will then verify them (and their violation) using N-body simulations for the matter density in the Universe. This proves consistency relations to be a promising tool to apply in the forthcoming large scale structures surveys. I will conclude describing some work in progress aimed at finding a practical recipe to constrain f_NL from these relations.

 

Date: 30/03/2021 - 1:00 pm
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