Resonant primordial gravitational waves amplification

We propose a mechanism to evade the Lyth bound in models of inflation. We minimally extend the conventional single-field inflation model in general relativity (GR) to a theory with non-vanishing graviton mass in the very early universe. The modification primarily affects the tensor perturbation, whi...

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Bibliographic Details
Main Authors: Chunshan Lin, Misao Sasaki
Format: Article
Language:English
Published: Elsevier 2016-01-01
Series:Physics Letters B
Online Access:http://www.sciencedirect.com/science/article/pii/S0370269315008692