Curvature Perturbations from Broken Symmetries

Details Curvature Perturbations from Broken Symmetries Curvature Perturbations from Broken Symmetries

2004-10-22

arxiv.org/abs/astro-ph/0410546v1

Phys.Rev. D71 (2005) 043513

Astronomy and Astrophysics

Astrophysics

13 pages, 4 figures

Scientific paper

10.1103/PhysRevD.71.043513

We present a new general mechanism to generate curvature perturbations after
the end of the slow-roll phase of inflation. Our model is based on the simple
assumption that the potential driving inflation is characterized by an
underlying global symmetry which is slightly broken.

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