Supersymmetric Gauge Theories, Intersecting Branes and Free Fermions

  title={Supersymmetric Gauge Theories, Intersecting Branes and Free Fermions},
  author={Robbert Dijkgraaf and Lotte Hollands and Piotr Sulkowski and Cumrun Vafa},
  journal={Journal of High Energy Physics},
We show that various holomorphic quantities in supersymmetric gauge theories can be conveniently computed by configurations of D4-branes and D6-branes. These D-branes intersect along a Riemann surface that is described by a holomorphic curve in a complex surface. The resulting I-brane carries two-dimensional chiral fermions on its world-volume. This system can be mapped directly to the topological string on a large class of non-compact Calabi-Yau manifolds. Inclusion of the string coupling… Expand

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