D-branes and Discrete Torsion II

Details D-branes and Discrete Torsion II D-branes and Discrete Torsion II

1999-03-02

arxiv.org/abs/hep-th/9903031v1

JHEP0509:053,2005

Physics

High Energy Physics

High Energy Physics - Theory

harvmac, 25 pp

Scientific paper

10.1088/1126-6708/2005/09/053

We derive D-brane gauge theories for C^3/Z_n x Z_n orbifolds with discrete torsion and study the moduli space of a D-brane at a point. We show that, as suggested in previous work, closed string moduli do not fully resolve the singularity, but the resulting space -- containing n-1 conifold singularities -- is somewhat surprising. Fractional branes also have unusual properties. We also define an index which is the CFT analog of the intersection form in geometric compactification, and use this to show that the elementary D6-brane wrapped about T^6/Z_n x Z_n must have U(n) world-volume gauge symmetry.

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