Trapped Brane Features in DBI Inflation
arXiv:1010.4462
Abstract
We consider DBI inflation with a quadratic potential and the effect of trapped branes on the inflationary fluctuations. When going through a trapped brane the effective potential of the inflaton receives a contribution whose effect is to induce a jump in the power spectrum of the inflaton perturbations. This feature appears in the power spectrum at a scale corresponding to the size of the sound horizon when the two branes cross each other.
This paper has been withdrawn by the authors. Article superseded by arXiv:1102.1917
References in corpus (9)
- Inflation and WMAP three year data: Features have a Future!
- CMB polarization features from inflation versus reionization
- New Universal Local Feature in the Inflationary Perturbation Spectrum
- New Constraints on Oscillations in the Primordial Spectrum of Inflationary Perturbations
- Comparing Infrared Dirac-Born-Infeld Brane Inflation to Observations
- On Features and Nongaussianity from Inflationary Particle Production
- K-inflationary Power Spectra in the Uniform Approximation
- Brane inflation and reheating
- Constraints on Kinetically Modified Inflation from WMAP5