Beyond the Starobinsky model for inflation

We single out the Starobinsky model and its extensions among generic f(R) gravity as attractors at large field values for chaotic inflation. Treating a R3 curvature term as a perturbation of the Starobinsky model, we impose the phenomenological bounds on the additional term satisfying the successful...

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Bibliographic Details
Main Authors: Dhong Yeon Cheong, Hyun Min Lee, Seong Chan Park
Format: Article
Language:English
Published: Elsevier 2020-06-01
Series:Physics Letters B
Online Access:http://www.sciencedirect.com/science/article/pii/S0370269320302574