Anti-self-dual Yang-Mills equations on noncommutative spacetime

Details Anti-self-dual Yang-Mills equations on noncommutative spacetime Anti-self-dual Yang-Mills equations on noncommutative spacetime

2000-05-22

arxiv.org/abs/hep-th/0005194v4

J.Geom.Phys. 37 (2001) 291-306

Physics

High Energy Physics

High Energy Physics - Theory

latex2e using packages amsmath and amssymb, 24 pages, no figure; (v2) a comment and references on the Nahm equations are added

Scientific paper

10.1016/S0393-0440(00)00056-5

By replacing the ordinary product with the so called $\star$-product, one can construct an analogue of the anti-self-dual Yang-Mills (ASDYM) equations on the noncommutative $\bbR^4$. Many properties of the ordinary ASDYM equations turn out to be inherited by the $\star$-product ASDYM equation. In particular, the twistorial interpretation of the ordinary ASDYM equations can be extended to the noncommutative $\bbR^4$, from which one can also derive the fundamental strutures for integrability such as a zero-curvature representation, an associated linear system, the Riemann-Hilbert problem, etc. These properties are further preserved under dimensional reduction to the principal chiral field model and Hitchin's Higgs pair equations. However, some structures relying on finite dimensional linear algebra break down in the $\star$-product analogues.

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