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arXiv · hep-th/0407233

O3/O7 Orientifold Truncations and Very Special Quaternionic-Kaehler Geometry

Geert Smet·Joris Van den Bergh
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Abstract

We study the orientifold truncation that arises when compactifying type II string theory on Calabi-Yau orientifolds with O3/O7-planes, in the context of supergravity. We look at the N=2 to N=1 reduction of the hypermultiplet sector of N=2 supergravity under the truncation, for the case of very special quaternionic-Kaehler target space geometry. We explicitly verify the Kaehler structure of the truncated spaces, and we study the truncated isometry algebra. For symmetric special quaternionic spaces, we give a complete overview of the spaces one finds after truncation. We also find new examples of dual Kaehler spaces, that give rise to flat potentials in N=1 supergravity.

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Geert Smet, Joris Van den Bergh. 2004-12-13. O3/O7 Orientifold Truncations and Very Special Quaternionic-Kaehler Geometry. https://doi.org/10.1088/0264-9381%2F22%2F1%2F001

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