We construct an extended Hubbard model with open boundaries from a R-matrix based on the Uq[Osp(2∣2)] superalgebra. We study the reflection equation and find two classes of diagonal solutions. The corresponding one-dimensional open Hamiltonians are diagonalized by means of the Bethe ansatz approach.
@article{arxiv.solv-int/9907006,
title = {Integrable supersymmetric correlated electron chain with open boundaries},
author = {M. J. Martins and X. W. Guan},
journal= {arXiv preprint arXiv:solv-int/9907006},
year = {2009}
}