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arXiv · hep-th/9911190

Discrete Deformations in Type I Vacua

Carlo Angelantonj·Ralph Blumenhagen
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Abstract

We study supersymmetric orientifolds where the world-sheet parity transformation is combined with a conjugation of some compact complex coordinates. We investigate their T-duality relation to standard orientifolds and discuss the origin of continuous and discrete moduli. In contrast to standard orientifolds, the antisymmetric tensor describes a continuous deformation, while the off-diagonal part of the metric is frozen to quantized values and is responsible for the rank reduction of the gauge group. We also give a geometrical interpretation of some recently constructed six-dimensional permutational orientifolds.

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Carlo Angelantonj, Ralph Blumenhagen. 1999-12-17. Discrete Deformations in Type I Vacua. https://doi.org/10.1016/s0370-2693(99)01480-x

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