Non-geometric Calabi-Yau backgrounds and K3 automorphisms

  title={Non-geometric Calabi-Yau backgrounds and K3 automorphisms},
  author={Christopher M. Hull and Dan Isra{\"e}l and Alessandra Sarti},
  journal={Journal of High Energy Physics},
A bstractWe consider compactifications of type IIA superstring theory on mirror-folds obtained as K3 fibrations over two-tori with non-geometric monodromies involving mirror symmetries. At special points in the moduli space these are asymmetric Gepner models. The compactifications are constructed from non-geometric automorphisms that arise from the diagonal action of an automorphism of the K3 surface and of an automorphism of the mirror surface. We identify the corresponding gaugings of N… 

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