76 citations · 506 across the 18 of their papers we have counts for
Showing 2012Show all
2 papers · 1 filter
astro-ph.CO2012★ 3 cited
Effects of Variable Newton Constant During Inflation
Ali Akbar Abolhasani, Hassan Firouzjahi, Mahdiyar Noorbala
In this paper the effects of time-dependent Newton constant G during inflation are studied. We present the formalism of curvature perturbations in an inflationary system with a tim…
astro-ph.CO2012★ 19 cited
Local Features with Large Spiky non-Gaussianities during Inflation
Ali Akbar Abolhasani, Hassan Firouzjahi, Shahram Khosravi +1
We provide a dynamical mechanism to generate localized features during inflation. The local feature is due to a sharp waterfall phase transition which is coupled to the inflaton fi…