Corpus ID: 235352604

Spectrum oscillations from features in the potential of single-field inflation

  title={Spectrum oscillations from features in the potential of single-field inflation},
  author={Iannis Dalianis and George P. Kodaxis and Ioanna D. Stamou and N. Tetradis and A. Tsigkas-Kouvelis},
We study single-field inflationary models with steep step-like features in the potential that lead to the temporary violation of the slow-roll conditions during the evolution of the inflaton. These features enhance the power spectrum of the curvature perturbations by several orders of magnitude at certain scales and also produce prominent oscillatory patterns. We study analytically and numerically the inflationary dynamics. We describe quantitatively the size of the enhancement, as well as the… Expand


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