Aligned natural inflation with modulations

The weak gravity conjecture applied for the aligned natural inflation indicates that generically there can be a modulation of the inflaton potential, with a period determined by sub-Planckian axion scale. We study the oscillations in the primordial power spectrum induced by such modulation, and disc...

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Bibliographic Details
Main Authors: Kiwoon Choi, Hyungjin Kim
Format: Article
Language:English
Published: Elsevier 2016-08-01
Series:Physics Letters B
Online Access:http://www.sciencedirect.com/science/article/pii/S0370269316302659