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Classification of the $N=2, Z_{2} x Z_{2}$-symmetric type II orbifolds and their type II asymmetric duals
Using free world-sheet fermions, we construct and classify all the N=2, Z2 X Z2 four-dimensional orbifolds of the type IIA/B strings for which the orbifold projections act symmetrically on the left and right movers. We study the deformations of these models out of the fermionic point, deriving the p...
| Autores principales: | , , |
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| Lenguaje: | eng |
| Publicado: |
1999
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| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1016/S0550-3213(99)00135-2 http://cds.cern.ch/record/377441 |