Computation of superpotentials for D-branes
Dec, 2004
29 pages
Published in:
- Commun.Math.Phys. 264 (2006) 227-253
e-Print:
- hep-th/0412209 [hep-th]
Report number:
- SLAC-PUB-11020,
- SU-ITP-04-43,
- DUKE-CGTP-04-11,
- ILL-TH-04-7,
- ILL-(TH)-04-7
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Abstract:
We present a general method for the computation of tree-level superpotentials for the world-volume theory of B-type D-branes. This includes quiver gauge theories in the case that the D-brane is marginally stable. The technique involves analyzing the A-infinity structure inherent in the derived category of coherent sheaves. This effectively gives a practical method of computing correlation functions in holomorphic Chern-Simons theory. As an example, we give a more rigorous proof of previous results concerning 3-branes on certain singularities including conifolds. We also provide a new example.Note:
- 28 pages
- membrane model: D-brane
- superpotential
- gauge field theory: quiver
- Chern-Simons term
- category
- conifold
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