A NEW FAMILY OF INTEGRABLE EXTENDED MULTI-BAND HUBBARD HAMILTONIANS
Jan Ambjørn A, A. Sedrakyan, A. Avakyan +1 more
We consider exactly solvable 1D multi-band fermionic Hamiltonians, which have affine quantum group symmetry for all values of the deformation. The simplest Hamiltonian is a multi-band t-J model with vanishing spin–spin interaction, which is the affinization of an underlying XXZ model. We also find a multi-band generalization of standard t-J model Hamiltonian.
arXiv:cond-mat/9702128•Modern Physics Letters A•Mar 7, 1998•4 citations