High Energy Theory Seminar

  24 September 2010

  Per Berglund (University of New Hampshire)

Stringy corrections to the Kahler potential, SUSY breaking and the stabilization of (all) Kahler moduli


We revisit the idea that stringy corrections to the Kahler potential in N=1 flux compactifications to four dimensions can qualitatively change the structure of the effective scalar potential even at large volume. Following recent work by Bobkov et al [arXiv:1003.1982], we find that there exist non-supersymmetric vacua, including metastable de Sitter spacetimes, when the alpha' corrections to the Kahler potential are combined with a single contribution to the non-perturbative superpotential by an ample divisor.

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