Multi-Field versus Single-Field in the Supergravity Models of Inflation and Primordial Black Holes

We review the models unifying inflation and Primordial Black Hole (PBH) formation, which are based on the modified (Starobinsky-type) supergravity. We begin with the basic (Starobinsky) inflationary model of modified gravity and its alpha-attractor-type generalizations for PBH production, and recall...

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Bibliographic Details
Main Author: Sergei V. Ketov
Format: Article
Language:English
Published: MDPI AG 2021-04-01
Series:Universe
Subjects:
Online Access:https://www.mdpi.com/2218-1997/7/5/115