Avoiding the string swampland in single-field inflation: excited initial states

Abstract One class of single-field inflationary models compatible with the recently-conjectured Swampland criteria would be those in which a Hubble slow-roll arameter ϵ H is not the same as ϵ V ∼ (V ′ /V)2. However, a roadblock for these models (with a convex potential) lie in the unacceptably high...

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Bibliographic Details
Main Authors: Suddhasattwa Brahma, Md. Wali Hossain
Format: Article
Language:English
Published: SpringerOpen 2019-03-01
Series:Journal of High Energy Physics
Subjects:
Online Access:http://link.springer.com/article/10.1007/JHEP03(2019)006