PIRSA:08060099 Conference Quantum Fields and Strings Particle Physics Cosmology

DOI10.48660/08060099

Conference/School: PASCOS 08

(2008). Wilson Line Inflation . Perimeter Institute. https://pirsa.org/08060099

Wilson Line Inflation . Perimeter Institute, Jun. 06, 2008, https://pirsa.org/08060099 

@misc{ pirsa_PIRSA:08060099,
  doi = {10.48660/08060099},
  url = {https://pirsa.org/08060099},
  author = {},
  keywords = {Quantum Fields and Strings, Particle Physics, Cosmology},
  language = {en},
  title = {Wilson Line Inflation },
  publisher = {Perimeter Institute},
  year = {2008},
  month = {jun},
  note = {PIRSA:08060099 see, \url{https://pirsa.org}}
}

Abstract

I will present a model of inflation in string theory, where the inflaton field corresponds to a Wilson line in the worldvolume of a D-brane, and in the presence of magnetic flux. Inflation ends in a hybrid fashion, when the Wilson line achieves a critical value and an open string mode becomes tachyonic. This scenario predicts a nearly flat, or red tilted, spectrum of scalar perturbations, with negligible primordial gravitational waves. Interestingly, there is a simple compactification in which the eta-problem, appearing in models of brane inflation, is absent.

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