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.