Chern-Simons Terms on Noncommutative Branes

Details Chern-Simons Terms on Noncommutative Branes Chern-Simons Terms on Noncommutative Branes

2000-09-13

arxiv.org/abs/hep-th/0009101v3

JHEP 0011 (2000) 006

Physics

High Energy Physics

High Energy Physics - Theory

harvmac, 17 pages (b), 11 pages (l); v3: final version, to appear in JHEP

Scientific paper

10.1088/1126-6708/2000/11/006

We write down couplings of the fields on a single BPS Dp-brane with noncommutative world-volume coordinates to the RR-forms in type II theories, in a manifestly background independent way. This generalises the usual Chern-Simons action for a commutative Dp-brane. We show that the noncommutative Chern-Simons terms can be mapped to Myers terms on a collection of infinitely many D-instantons. We also propose Chern-Simons couplings for unstable non-BPS branes, and show that condensation of noncommutative tachyons on these branes leads to the correct Myers terms on the decay products.

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