D Branes and Phases on String Worldsheet

Abstract

We generalize the worldsheet derivation of the topological open/closed string duality given in hep-th/0205297 to cases when there are different types of D branes on the open string side. We use the mirror Landau-Ginzburg description to clarify the correspondence between D branes on the open string side and C phases on the closed string side. We also discuss the duality from the point of view of the B model.

latex, 19 pages, no figure

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• Chern-Simons matrix model for local conifold
• G_2 Holonomy, Mirror Symmetry and Phases of N=1 SYM