PIRSA:21030042

Primordial non-gaussianities from consistency relations: a proof of principle

Esposito, A. (2021). Primordial non-gaussianities from consistency relations: a proof of principle. Perimeter Institute. https://pirsa.org/21030042

Esposito, Angelo. Primordial non-gaussianities from consistency relations: a proof of principle. Perimeter Institute, Mar. 30, 2021, https://pirsa.org/21030042 

          @misc{ pirsa_PIRSA:21030042,
            doi = {10.48660/21030042},
            url = {https://pirsa.org/21030042},
            author = {Esposito, Angelo},
            keywords = {Particle Physics},
            language = {en},
            title = {Primordial non-gaussianities from consistency relations: a proof of principle},
            publisher = {Perimeter Institute},
            year = {2021},
            month = {mar},
            note = {PIRSA:21030042 see, \url{https://pirsa.org}}
          }

Angelo Esposito

Columbia University

Talk number
PIRSA:21030042
Collection
Talk Type
Subject
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.