Katsuyuki Sugiyama and Satoshi Yamaguchi JHEP02(2001)015 doi:10.1088/1126-6708/2001/02/015
Katsuyuki Sugiyama1 and Satoshi Yamaguchi2
Show affiliationsWe 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.
Issue 02 ( 1 February 2001)
Received 12 November 2000, accepted for publication 8 February 2001
Published 26 February 2001
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