D-branes on a Noncompact Singular Calabi-Yau Manifold
arXiv:hep-th/0011091 · doi:10.1088/1126-6708/2001/02/015
Abstract
We investigate D-branes on a noncompact singular Calabi-Yau manifold by using the boundary CFT description, and calculate the open string Witten indices between the boundary states. The B-type D-branes turn out to be characterized by the properties of a compact positively curved manifold. We give geometric interpretations to these boundary states in terms of coherent sheaves of the manifold.
31 pages, LaTeX, 1 figure, amsmath, minor changes, references are added, a figure is added
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