de Sitter vacua from an anomalous gauge symmetry
arXiv:1603.00654 · doi:10.1103/PhysRevLett.116.221303
Abstract
We find a new class of metastable de Sitter solutions in compactifications of six-dimensional supergravity motivated by type IIB or heterotic string vacua. Two Fayet-Iliopoulos terms of a local U(1) symmetry are generated by magnetic flux and by the Green-Schwarz term canceling the gauge anomalies, respectively. The interplay between the induced D-term, the moduli dependence of the effective gauge coupling, and a nonperturbative superpotential stabilizes the moduli and determines the size of the extra dimensions.
arXiv comment10 pages, 1 figure, minor modifications, to appear in PRL
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- Brane-localized masses in magnetic compactifications
- Magnetized orbifolds and localized flux
- de Sitter vacua and supersymmetry breaking in six-dimensional flux compactifications
- One-loop Pfaffians and large-field inflation in string theory
- Seesaw mechanism in magnetic compactifications