PIRSA:09030021

Codimension-2 brane inflation

Papazoglou, A. (2009). Codimension-2 brane inflation. Perimeter Institute. https://pirsa.org/09030021

Papazoglou, Antonios. Codimension-2 brane inflation. Perimeter Institute, Mar. 03, 2009, https://pirsa.org/09030021 

          @misc{ pirsa_PIRSA:09030021,
            doi = {10.48660/09030021},
            url = {https://pirsa.org/09030021},
            author = {Papazoglou, Antonios},
            keywords = {Cosmology},
            language = {en},
            title = {Codimension-2 brane inflation},
            publisher = {Perimeter Institute},
            year = {2009},
            month = {mar},
            note = {PIRSA:09030021 see, \url{https://pirsa.org}}
          }

Antonios Papazoglou

University of Portsmouth

Talk number
PIRSA:09030021
Collection
Talk Type
Subject
Abstract
We consider a probe codimension-2 brane inflation scenario in a warped six-dimensional flux compactification. First, we stabilise the modulus of the model by means of a cap regularisation of the codimension-2 singularities of the background solution. Then, we discuss the cosmological evolution of the world-volume of a probe codimension-2 brane when it moves along the radial direction of the internal space. In order to have slow-roll inflation, one needs the warping of the internal space to be weak, in contrast to the recent string inflation constructions with strong warping. We discuss the parameter range that the inflation is in agreement with the observationally inferred parameters and which furthermore is consistent with the probe brane approximation. We show that this scenario is falsifiable if substantial tensor modes are detected.