Twisting K3 x T^2 Orbifolds
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.
Cite
@article{arxiv.hep-th/0701204,
title = {Twisting K3 x T^2 Orbifolds},
author = {Mirjam Cvetic and Tao Liu and Michael B. Schulz},
journal= {arXiv preprint arXiv:hep-th/0701204},
year = {2009}
}
Comments
57 pages, 4 figures; uses harvmac.tex, amssym.tex; v3: minor corrections, references added