An Analysis of Fluxes by Duality

Abstract

M-theory on K3xK3 with non-supersymmetry-breaking G-flux is dual to M-theory on a Calabi-Yau threefold times a 2-torus without flux. This allows for a thorough analysis of the effects of flux without relying on supergravity approximations. We discuss several dual pairs showing that the usual rules of G-flux compactifications work well in detail. We discuss how a transition can convert M2-branes into G-flux. We see how new effects can arise at short distances allowing fluxes to obstruct more moduli than one expects from the supergravity analysis.

arXiv comment24 pages, LaTeX

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• Fixing All Moduli for M-Theory on K3xK3
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• On N=1 4d Effective Couplings for F-theory and Heterotic Vacua
• Heterotic string from a higher dimensional perspective
• Flux backgrounds from Twists
• Origin of Abelian Gauge Symmetries in Heterotic/F-theory Duality
• Calabi-Yau Duals of Torus Orientifolds
• Discrete Symmetries in Heterotic/F-theory Duality and Mirror Symmetry
• Instantons, Hypermultiplets and the Heterotic String
• Enhanced Symmetries in Multiparameter Flux Vacua
• A Note on Heterotic Dualities via M-theory
• Abelian Fibrations, String Junctions, and Flux/Geometry Duality
• Heterotic Kahler/non-Kahler Transitions
• Heterotic flux backgrounds and their IIA duals