37 citations · 91 across the 5 of their papers we have counts for
3 papers · 1 filter
Double inflation in supergravity and the primordial black hole formation
Toshiyuki Kanazawa, M. Kawasaki, T. Yanagida
We study a double inflation model (a hybrid inflation + a new inflation) in supergravity and discuss the formation of primordial black holes (PBHs) with mass \sim 10^{-20}-10^{5}M_…
Double Inflation in Supergravity and the Large Scale Structure
Toshiyuki Kanazawa, M. Kawasaki, Naoshi Sugiyama +1
The cosmological implication of a double inflation model with hybrid + new inflations in supergravity is studied. The hybrid inflation drives an inflaton for new inflation close to…
Isocurvature Fluctuations of the M-theory Axion in a Hybrid Inflation Model
Toshiyuki Kanazawa, M. Kawasaki, Naoshi Sugiyama +1
The M-theory, the strong-coupling heterotic string theory, presents various interesting new phenomenologies. The M-theory bulk axion is one of these. The decay constant in this con…