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arXiv · hep-th/0701204

Twisting K3 x T^2 Orbifolds

Mirjam Cvetic·Tao Liu·Michael B. Schulz
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Abstract

We construct a class of geometric twists of Calabi-Yau manifolds of Voisin-Borcea type (K3 x T^2)/Z_2 and study the superpotential in a type IIA orientifold based on this geometry. The twists modify the direct product by fibering the K3 over T^2 while preserving the Z_2 involution. As an important application, the Voisin-Borcea class contains T^6/(Z_2 x Z_2), the usual setting for intersecting D6 brane model building. Past work in this context considered only those twists inherited from T^6, but our work extends these twists to a subset of the blow-up modes. Our work naturally generalizes to arbitrary K3 fibered Calabi-Yau manifolds and to nongeometric constructions.

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Mirjam Cvetic, Tao Liu, Michael B. Schulz. 2007-08-21. Twisting K3 x T^2 Orbifolds. https://doi.org/10.1088/1126-6708%2F2007%2F09%2F092

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