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Inflation with Planck data: A survey of some exotic inflationary models

Authors: Cláudio Gomes, Orfeu Bertolami, JG Rosa

Ref.: Physical Review D 97, 104061 (2018)

Abstract: We examine some inflationary models based on modifications of gravity in the light of Planck 2015 data, such as the generalized Chaplygin inspired inflation, models based in N=1 supergravity and braneworld scenarios. We also show that, conversely, potentials with a very flat plateau yield a primordial spectrum similar to that of the Starobinsky model with no need to modify general relativity.