Integrable SU(m|n) supersymmetric electronic models of strong   correlations
  We generalize the SU(2|2) supersymmetric extended Hubbard model of 1/r2 interaction to the SU(m|n) supersymmetric case. Integrable models may be defined on both uniform lattice and non-uniform one dimensional lattices. We study both cases in detail and present the ground state wavefunctions and energy spectra of these models. 
James T. Liu (Rockefeller) and D. F. Wang (ETH-L)