Chaotic Inflation in Supergravity after Planck and BICEP2

Abstract

We discuss the general structure and observational consequences of some of the simplest versions of chaotic inflation in supergravity in relation to the data by Planck 2013 and BICEP2. We show that minimal modifications to the simplest quadratic potential are sufficient to provide a controllable tensor mode signal and a suppression of CMB power at large angular scales.

Comments: 13 pages, 6 figures, minor references changes