Volume Stabilization via ${\alpha }^{\prime }$ Corrections in Type IIB Theory with Fluxes

Abstract

We consider the Type IIB string theory in the presence of various extra $7/\bar{7}$-brane pairs compactified on a warped Calabi-Yau threefold that admits a conifold singularity. We demonstrate that the volume modulus can be stabilized perturbatively at a non-supersymmetric $Ad{S}_4/d{S}_4$ vacuum by the effective potential that includes the stringy $({\alpha }^{\prime }{)}^3$ correction obtained by Becker {\it et al.} together with a combination of positive tension and anomalous negative tension terms generated by the additional 7-brane-antibrane pairs.

20 pages, 4 figures, parts of introduction and conclusions are modified

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• Systematics of String Loop Corrections in Type IIB Calabi-Yau Flux Compactifications
• Kaehler Corrections for the Volume Modulus of Flux Compactifications
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