Article ID Journal Published Year Pages File Type
1840789 Nuclear Physics B 2012 19 Pages PDF
Abstract
We study the generation of the primordial curvature perturbation in multi-field inflation. Considering both the evolution of the perturbation during inflation and the effects generated at the end of inflation, we present a general formula for the curvature perturbation. We provide the analytic expressions of the power spectrum, spectral tilt and non-Gaussianity for the separable potentials of two inflaton scalars, and apply them to some specific models.
Related Topics
Physical Sciences and Engineering Mathematics Mathematical Physics
Authors
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