Topological Charge of ADHM Instanton on R^2_{NC}*R^2

Details Topological Charge of ADHM Instanton on R^2_{NC}*R^2 Topological Charge of ADHM Instanton on R^2_{NC}*R^2

2004-04-19

arxiv.org/abs/hep-th/0404128v1

Mod.Phys.Lett. A19 (2004) 1315-1317

Physics

High Energy Physics

High Energy Physics - Theory

LaTeX, to appear in Mod. Phys. Lett. A

Scientific paper

10.1142/S0217732304013726

We have calculated the topological charge of U(N) instantons on non-degenerate noncommutative space time to be exactly the instanton number k in a previous paper [Mod.Phys.Lett. A18 1691]. This paper, which deals with the degenerate R^2_{NC}*R^2 case, is the continuation of that one. We find that the same conclusion holds in this case, thus complete the answer to the problem of topological charge of noncommutative U(N) instantons.

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