Can Seiberg-Witten Map Bypass Noncommutative Gauge Theory No-Go Theorem?
Abstract
There are strong restrictions on the possible representations and in general on the matter content of gauge theories formulated on noncommutative Moyal spaces, termed as noncommutative gauge theory no-go theorem. According to the no-go theorem no-go, matter fields in the noncommutative U(1) gauge theory can only have 1 or zero charges and for a generic noncommutative Πi=1n U(Ni) gauge theory matter fields can be charged under at most two of the U(Ni) gauge group factors. On the other hand, it has been argued in the literature that, since a noncommutative U(N) gauge theory can be mapped to an ordinary U(N) gauge theory via the Seiberg-Witten map, seemingly it can bypass the no-go theorem. In this note we show that the Seiberg-Witten map SW can only be consistently defined and used for the gauge theories which respect the no-go theorem. We discuss the implications of these arguments for the particle physics model building on noncommutative space.