2007

Axion Inflation in Type II String Theory

Grimm, Thomas W.

Understand

Inflationary models driven by a large number of axion fields are discussed in the context of type IIB compactifications with N=1 supersymmetry.

  • The inflatons arise as the scalar modes of the R-R two-forms evaluated on vanishing two-cycles in the compact geometry.
  • The vanishing cycles are resolved by small two-volumes or NS-NS B-fields which sit together with the inflatons in the same supermultiplets.
  • String world-sheets wrapping the vanishing cycles correct the metric of the R-R inflatons.

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