Noncommutative Point Sources
arXiv:0709.3831 · doi:10.1103/PhysRevLett.100.061601
Abstract
We construct a perturbative solution to classical noncommutative gauge theory on minus the origin using the Groenewald-Moyal star product. The result describes a noncommutative point charge. Applying it to the quantum mechanics of the noncommutative hydrogen atom gives shifts in the hyperfine splitting which are first order in the noncommutativity parameter.
8 pages