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Type-I vacua from non-geometric Orbifolds

Gianfranco Pradisi
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Abstract

Some examples of Type-I vacua related to non geometric orbifolds are shown. In particular, the open descendants of the diagonal $Z_3$ orbifold are compared with the geometric ones. Although not chiral, these models exhibit some interesting properties, like twisted sectors in the open-string spectra and the presence of ``quantized'' geometric moduli, a key ingredient to ensure their perturbative consistency and to explain the rank reduction of their Chan-Paton groups.

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Gianfranco Pradisi. 2001-01-12. Type-I vacua from non-geometric Orbifolds. https://doi.org/10.1142/9789812777386_0197

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