Systematics of Moduli Stabilisation in Calabi-Yau Flux Compactifications

Details Systematics of Moduli Stabilisation in Calabi-Yau Flux Compactifications Systematics of Moduli Stabilisation in Calabi-Yau Flux Compactifications

2005-02-04

arxiv.org/abs/hep-th/0502058v2

JHEP 0503:007,2005

Physics

High Energy Physics

High Energy Physics - Theory

23 pages, LaTeX, 1 eps figure; v2: typos, references, minor rewordings

Scientific paper

10.1088/1126-6708/2005/03/007

We study the large volume limit of the scalar potential in Calabi-Yau flux compactifications of type IIB string theory. Under general circumstances there exists a limit in which the potential approaches zero from below, with an associated non-supersymmetric AdS minimum at exponentially large volume. Both this and its de Sitter uplift are tachyon-free, thereby fixing all Kahler and complex structure moduli, which has been difficult to achieve in the KKLT scenario. Also, for the class of vacua described in this paper, the gravitino mass is independent of the flux discretuum, whereas the ratio of the string scale to the 4d Planck scale is hierarchically small but flux dependent. The inclusion of alpha' corrections plays a crucial role in the structure of the potential. We illustrate these ideas through explicit computations for a particular Calabi-Yau manifold.

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