Exact solution of generalized Schulz-Shastry type models
arXiv:cond-mat/0003099 · doi:10.1016/S0550-3213(00)00496-X
Abstract
A class of integrable one-dimensional models presented by Shastry and Schulz is consequently extended to the whole class of one-dimensional Hubbard- or XXZ-type models with correlated gauge-like hopping. A complete characterization concerning solvability by coordinate Bethe ansatz of this class of models is found.
13 pages, 3 figures, revtex. Minor changes, references added