192 citations · 2.8k across the 75 of their papers we have counts for
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A new algorithm for calculating the curvature perturbations in stochastic inflation
Tomohiro Fujita, Masahiro Kawasaki, Yuichiro Tada +1
We propose a new approach for calculating the curvature perturbations produced during inflation in the stochastic formalism. In our formalism, the fluctuations of the e-foldings ar…
Higher order statistics of curvature perturbations in IFF model and its Planck constraints
Tomohiro Fujita, Shuichiro Yokoyama
We compute the power spectrum P_ζ, and non-linear parameters f_nl and τ_nl of the curvature perturbation induced during inflation by the electromagnetic fields in the kinetic coupl…
Large Scale Cosmic Perturbation from Evaporation of Primordial Black Holes
Tomohiro Fujita, Keisuke Harigaya, Masahiro Kawasaki
We present a novel mechanism to generate the cosmic perturbation from evaporation of primordial black holes. A mass of a field is fluctuated if it is given by a vacuum expectation…