A New Family of Integrable Extended Multi-band Hubbard Hamiltonians
arXiv:cond-mat/9702128 · doi:10.1142/S0217732398000553
Abstract
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.
8 pages, LaTeX file, no figures