Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2009-12-16
Nucl.Phys.B838:458-491,2010
Physics
High Energy Physics
High Energy Physics - Theory
43 pages, v2: minor corrections
Scientific paper
10.1016/j.nuclphysb.2010.06.011
Under heterotic/F-theory duality it was argued that a wide class of heterotic five-branes is mapped into the geometry of an F-theory compactification manifold. In four-dimensional compactifications this identifies a five-brane wrapped on a curve in the base of an elliptically fibered Calabi-Yau threefold with a specific F-theory Calabi-Yau fourfold containing the blow-up of the five-brane curve. We argue that this duality can be reformulated by first constructing a non-Calabi-Yau heterotic threefold by blowing up the curve of the five-brane into a divisor with five-brane flux. Employing heterotic/F-theory duality this leads us to the construction of a Calabi-Yau fourfold and four-form flux. Moreover, we obtain an explicit map between the five-brane superpotential and an F-theory flux superpotential. The map of the open-closed deformation problem of a five-brane in a compact Calabi-Yau threefold into a deformation problem of complex structures on a dual Calabi-Yau fourfold with four-form flux provides a powerful tool to explicitly compute the five-brane superpotential.
Grimm Thomas W.
Ha Tae-Won
Klemm Albrecht
Klevers Denis
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