| Modeling local features during inflation and curvature perturbations with spiky non-Gaussianities Hassan Firouzjahi (IPM) Abstract In this talk we study different mechanisms which can create local features in curvature perturbations power spectrum. This includes a rapid change in Newton constant during inflation, a rapid change in equation of state
and waterfall phase transition during inflation. The effects of these dynamics on curvature perturbations and producing spiky non-Gaussianities on CMB are studied. August 1 / 11 Mordad 1391 Wednesday 2:00 PM IPM Larak Building, School of Astronomy Address: Larak Garden, opposite Araj, Artesh Highway,Tehran, Iran E-mail: astro(at)ipm.ir
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