Stochastic inflation with an extremely large number of e-folds

We propose a class of single-field, slow-roll inflation models in which a typical number of e-folds can be extremely large. The key point is to introduce a very shallow local minimum near the top of the potential in a hilltop inflation model. In particular, a typical number of e-folds is enhanced if...

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Bibliographic Details
Main Authors: Naoya Kitajima, Yuichiro Tada, Fuminobu Takahashi
Format: Article
Language:English
Published: Elsevier 2020-01-01
Series:Physics Letters B
Online Access:http://www.sciencedirect.com/science/article/pii/S0370269319308196