Generating the curvature perturbation at the end of inflation

Abstract

The dominant contribution to the primordial curvature perturbation may be generated at the end of inflation. Taking the end of inflation to be sudden, formulas are presented for the spectrum, spectral tilt and non-gaussianity. They are evaluated for a minimal extension of the original hybrid inflation model.

5 pages. v3: as it will appear in JCAP

References in corpus (6)

• Non-Gaussianity from Inflation: Theory and Observations
• A general proof of the conservation of the curvature perturbation
• The inflationary prediction for primordial non-gaussianity
• Curvature Perturbations from Broken Symmetries
• A Bound Concerning Primordial Non-Gaussianity
• Fluctuating annihilation cross sections and the generation of density perturbations

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