de Sitter quantum loops as the origin of primordial non-Gaussianities

It was recently pointed out that in some inflationary models quantum loops containing a scalar of mass m that couples to the inflaton can be the dominant source of primordial non-Gaussianities. We explore this phenomenon in the simplest such model focusing on the behavior of the primordial curvature...

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Veröffentlicht in:	Physical review. D 2019-03, Vol.99 (5), Article 056007
Hauptverfasser:	An, Haipeng, Wise, Mark B., Zhang, Zipei
Format:	Artikel
Sprache:	eng
Schlagworte:	ASTRONOMY AND ASTROPHYSICS Big Bang theory Constraint modelling Cosmic microwave background Curvature PHYSICS OF ELEMENTARY PARTICLES AND FIELDS Variations
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