Perturbations of single-field inflation in modified gravity theory

In this paper, we study the case of single field inflation within the framework of modified gravity theory where the gravity part has an arbitrary form f(R). Via a conformal transformation, this case can be transformed into its Einstein frame where it looks like a two-field inflation model. However,...

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Bibliographic Details
Main Authors: Taotao Qiu, Jun-Qing Xia
Format: Article
Language:English
Published: Elsevier 2015-05-01
Series:Physics Letters B
Online Access:http://www.sciencedirect.com/science/article/pii/S0370269315002361