Consistently violating the non-Gaussian consistency relation

by Dr Gonzalo A. Palma (Physics Department, FCFM Universidad de Chile)

Thursday 5 Mar 2015, 11:15 → 12:15 Europe/Berlin

313

Cosmic inflation explains the origin of primordial curvature perturbations, the cosmic seed needed to explain the Cosmic Microwave Background anisotropies, and the appearance of all structures in the universe. In this talk, I will review the so called Maldacena’s consistency relation, which tells us that the 3-point and 2-point functions of curvature perturbations are related in certain limit. This consistency relation is regarded as one of the most powerful tools available in cosmology to falsify a large variety of inflationary models. In addition, I will discuss certain class of models, called non-attractor models, that violate this consistency relation. I will show that in such models, the 3-point and 2-point functions are still related together, in a way that may be determined exclusively from symmetries.