Non-Bunch–Davis initial state reconciles chaotic models with BICEP and Planck

The BICEP2 experiment has announced a signal for primordial gravity waves with tensor-to-scalar ratio r=0.2−0.05+0.07 [1]. There are two ways to reconcile this result with the latest Planck experiment [2]. One is by assuming that there is a considerable tilt of r, Tr, with a positive sign, Tr=dln⁡r/...

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Bibliographic Details
Main Authors: Amjad Ashoorioon, Konstantinos Dimopoulos, Mohammad M. Sheikh-Jabbari, Gary Shiu
Format: Article
Language:English
Published: Elsevier 2014-10-01
Series:Physics Letters B
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S0370269314006054