PIRSA:08060099

Wilson Line Inflation

(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}}
          }
Talk numberPIRSA:08060099
DOI10.48660/08060099
Collection
Talk Type Conference
Subject

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.