Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2002-02-25
Nucl.Phys.B635:395-431,2002
Physics
High Energy Physics
High Energy Physics - Theory
36 pages, Latex, version to appear in Nucl. Phys. B
Scientific paper
10.1016/S0550-3213(02)00338-3
Compactifications of type II theories on Calabi-Yau threefolds including electric and magnetic background fluxes are discussed. We derive the bosonic part of the four-dimensional low energy effective action and show that it is a non-canonical N=2 supergravity which includes a massive two-form. The symplectic invariance of the theory is maintained as long as the flux parameters transform as a symplectic vector and a massive two-form which couples to both electric and magnetic field strengths is present. The mirror symmetry between type IIA and type IIB compactified on mirror manifolds is shown to hold for R-R fluxes at the level of the effective action. We also compactify type IIA in the presence of NS three-form flux but the mirror symmetry in this case remains unclear.
Louis Jan
Micu Andrei
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