Chern-Simons in the Seiberg-Witten map for non-commutative Abelian gauge theories in 4D

A cohomological BRST characterization of the Seiberg-Witten (SW) map is given. We prove that the coefficients of the SW map can be identified with elements of the cohomology of the BRST operator modulo a total derivative. As an example, it will be illustrated how the first coefficients of the SW... Show more