| We generalized our numerical framework of matrix product states from arbitrary Abelian to non-abelian quantum symmetries. It is based on the simple observation that Clebsch Gordan coefficient spaces can be split off in a tensor product like fashion for all relevant objects. As an example, I will present results on a generalized SU(3) symmetric Anderson impurity model within the numerical renormalization group based on the explicit treatment of U(1)*SU(2)*SU(3) and SU(2)4 symmetries. This model of a fully screened S=3/2 spin Anderson model was suggested recently as the effective microscopic Kondo model for Fe impurities in gold or silver. |
|