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Unoriented D-brane instantons
If you have a question about this talk, please contact Dr Dorigoni.
We give a pedagogical introduction to D-brane instanton effects in vacuum configurations with open and unoriented strings. We focus on quiver gauge theories for unoriented D-branes at orbifold singularities and describe in some detail the Z_3 case, where both `gauge’ and `exotic’ instantons can generate non-perturbative super potentials, and the Z_5 case, where supersymmetry breaking may arise from the combined effect of `gauge’ instantons and a FI D -term.
This talk is part of the Wednesday HEP-GR Colloquium series.
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