Journal of High Energy Physics

, 2012:101

Moduli stabilization and inflationary cosmology with poly-instantons in type IIB orientifolds

  • Ralph Blumenhagen
  • Xin Gao
  • Thorsten Rahn
  • Pramod Shukla
Article

DOI: 10.1007/JHEP11(2012)101

Cite this article as:
Blumenhagen, R., Gao, X., Rahn, T. et al. J. High Energ. Phys. (2012) 2012: 101. doi:10.1007/JHEP11(2012)101

Abstract

Equipped with concrete examples of Type IIB orientifolds featuring polyinstanton corrections to the superpotential, the effects on moduli stabilization and inflationary cosmology are analyzed. Working in the framework of the LARGE volume scenario, the Kähler modulus related to the size of the four-cycle supporting the poly-instanton contributes sub-dominantly to the scalar potential. It is shown that this Kähler modulus gets stabilized and, by displacing it from its minimum, can play the role of an inflaton. Subsequent cosmological implications are discussed and compared to experimental data.

Keywords

Flux compactificationsdS vacua in string theorySuperstring Vacua

Copyright information

© SISSA, Trieste, Italy 2012

Authors and Affiliations

  • Ralph Blumenhagen
    • 1
  • Xin Gao
    • 1
    • 2
  • Thorsten Rahn
    • 1
  • Pramod Shukla
    • 1
  1. 1.Max-Planck-Institut für Physik (Werner-Heisenberg-Institut)MünchenGermany
  2. 2.State Key Laboratory of Theoretical Physics, Institute of Theoretical PhysicsChinese Academy of SciencesBeijingChina