Branes as Stable Holomorphic Line Bundles On the Non-Commutative Torus
arXiv:hep-th/0403126 · doi:10.1088/1126-6708/2004/10/002
Abstract
It was recently suggested by A. Kapustin that turning on a -field, and allowing some discrepancy between the left and and right-moving complex structures, must induce an identification of B-branes with holomorphic line bundles on a non-commutative complex torus. We translate the stability condition for the branes into this language and identify the stable topological branes with previously proposed non-commutative instanton equations. This involves certain topological identities whose derivation has become familiar in non-commutative field theory. It is crucial for these identities that the instantons are localized. We therefore explore the case of non-constant field strength, whose non-linearities are dealt with thanks to the rank-one Seiberg--Witten map.
arXiv comment12 pages, LaTeX
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