Topological Charge of ADHM Instanton on R^2_{NC}*R^2
High Energy Physics - Theory
2009-11-10 v1
Abstract
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.
Keywords
Cite
@article{arxiv.hep-th/0404128,
title = {Topological Charge of ADHM Instanton on R^2_{NC}*R^2},
author = {Yu Tian},
journal= {arXiv preprint arXiv:hep-th/0404128},
year = {2009}
}
Comments
LaTeX, to appear in Mod. Phys. Lett. A