283 citations · 1.4k across the 45 of their papers we have counts for
3 papers · 1 filter
Violation of non-Gaussianity consistency relation in a single field inflationary model
Mohammad Hossein Namjoo, Hassan Firouzjahi, Misao Sasaki
In this paper we present a simple, toy model of single field inflation in which the standard non-Gaussianity consistency condition is violated. In this model the curvature perturba…
Curvaton and the inhomogeneous end of inflation
Hooshyar Assadullahi, Hassan Firouzjahi, Mohammad Hossein Namjoo +1
We study the primordial density perturbations and non-Gaussianities generated from the combined effects of an inhomogeneous end of inflation and curvaton decay in hybrid inflation.…
Multiple Inflationary Stages with Varying Equation of State
Mohammad Hossein Namjoo, Hassan Firouzjahi, Misao Sasaki
We consider a model of inflation consisting a single fluid with a time-dependent equation of state. In this phenomenological picture, two periods of inflation are separated by an i…