Curvature Perturbations from Broken Symmetries
classification
🌌 astro-ph
hep-phhep-th
keywords
brokencurvatureinflationperturbationsassumptioncharacterizeddrivinggeneral
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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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