Discrete Deformations in Type I Vacua

Details Discrete Deformations in Type I Vacua Discrete Deformations in Type I Vacua

1999-11-24

arxiv.org/abs/hep-th/9911190v2

Phys.Lett. B473 (2000) 86-93

Physics

High Energy Physics

High Energy Physics - Theory

12 pages, TeX, harvmac, 4 figures, eq.(3.15) changed

Scientific paper

10.1016/S0370-2693(99)01480-X

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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