Can observations look back to the beginning of inflation?

The cosmic microwave background can measure the inflaton potential only if inflation lasts sufficiently long before the time of horizon crossing of observable fluctuations, such that non-linear effects in the time evolution of Green's functions lead to a loss of memory of initial conditions for...

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Bibliographic Details
Main Author: C. Wetterich
Format: Article
Language:English
Published: Elsevier 2016-03-01
Series:Physics Letters B
Online Access:http://www.sciencedirect.com/science/article/pii/S0370269316000393