125 citations · 282 across the 5 of their papers we have counts for
4 papers · 1 filter
Power spectrum in stochastic inflation
Kenta Ando, Vincent Vennin
We compute the power spectrum of curvature perturbations in stochastic inflation. This combines the distribution of first crossing times through the end-of-inflation surface, which…
Formation of primordial black holes in an axionlike curvaton model
Kenta Ando, Masahiro Kawasaki, Hiromasa Nakatsuka
We performed the detailed analysis of the primordial black hole (PBH) formation mechanism in an axionlike curvaton model with a coupling to inflaton. The phase direction of the com…
Primordial black holes and uncertainties in the choice of the window function
Kenta Ando, Keisuke Inomata, Masahiro Kawasaki
Primordial black holes (PBHs) can be produced by the perturbations that exit the horizon during inflationary phase. While inflation models predict the power spectrum of the perturb…
Primordial Black Holes for the LIGO Events in the Axion-like Curvaton Model
Kenta Ando, Keisuke Inomata, Masahiro Kawasaki +2
We revise primordial black hole (PBH) formation in the axion-like curvaton model and investigate whether PBHs formed in this model can be the origin of the gravtitational wave (GW)…