[[UTAPwiki/セミナー/初期宇宙・相対論速報]] S. Yokoyama, Title: "Gravitational Wave Background induced from scalar perturbations in the curvaton model". Abstract: Curvaton scenario is one of the mechanisms of generating primordial curvature perturbations and has been focused on as a model of generating large non-Gaussianity. Here, we don't care about the primordial non-Gaussianity and introduce the curvaton model which can generate the blue-tilted power spectrum of the curvature perturbations. We discuss the spectrum of the gravitational wave background induced from first order scalar x first order scalar in such model. |