192 citations · 2.3k across the 49 of their papers we have counts for
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Non-Gaussian Fingerprints of Self-Interacting Curvaton
Kari Enqvist, Sami Nurmi, Olli Taanila +1
We investigate non-Gaussianities in self-interacting curvaton models treating both renormalizable and non-renormalizable polynomial interactions. We scan the parameter space system…
Scale dependence of local f_NL
Christian T. Byrnes, Sami Nurmi, Gianmassimo Tasinato +1
We consider possible scale-dependence of the non-linearity parameter f_NL in local and quasi-local models of non-Gaussian primordial density perturbations. In the simplest model wh…
Non-Gaussianity from resonant curvaton decay
Alex Chambers, Sami Nurmi, Arttu Rajantie
We calculate curvature perturbations in the scenario in which the curvaton field decays into another scalar field via parametric resonance. As a result of a nonlinear stage at the…
The Subdominant Curvaton
Kari Enqvist, Sami Nurmi, Gerasimos Rigopoulos +2
We present a systematic study of the amplitude of the primordial perturbation in curvaton models with self-interactions, treating both renormalizable and non-renormalizable interac…