Symmetries in non-attractor inflation

Series: 
The London Relativity and Cosmology Seminar
Speaker: 
Sander Mooij (Chile) **Special Time**
Date: 
November 4th, 2015 at 16:30
Room: 
See Talk Details
Abstract: 

Perturbations in non-attractor models of inflation show very unconventional behaviour, even in the single field case. In particular, the comoving curvature perturbation does not freeze out on superhorizon scales, and Maldecena's consistency relation is violated. We show how these results can be understood via a symmetry-based approach, and formulate the non-attractor counterpart to Maldacena's consistency relation.