Non-Gaussianities and tensor-to-scalar ratio in non-local R 2-like inflation

Abstract In this paper we will study R 2-like inflation in a non-local modification of gravity which contains quadratic in Ricci scalar and Weyl tensor terms with analytic infinite derivative form-factors in the action. It is known that the inflationary solution of the local R + R 2 gravity remains...

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Bibliographic Details
Main Authors: Alexey S. Koshelev, K. Sravan Kumar, Anupam Mazumdar, Alexei A. Starobinsky
Format: Article
Language:English
Published: SpringerOpen 2020-06-01
Series:Journal of High Energy Physics
Subjects:
Online Access:http://link.springer.com/article/10.1007/JHEP06(2020)152