Integrable Kondo impurities in the one-dimensional supersymmetric extended Hubbard model
Huan-Qiang Zhou, Xiangyu Ge, M. D. Gould
An integrable Kondo problem in the one-dimensional supersymmetric extended Hubbard model is studied by means of the boundary graded quantum inverse scattering method. The boundary K -matrices depending on the local moments of the impurities are presented as a non-trivial realization of the graded reflection equation algebras in a two-dimensional impurity Hilbert space. Further, the model is solved by using the algebraic Bethe ansatz method and the Bethe ansatz equations are obtained.
arXiv:cond-mat/9811048•Journal of Physics A Mathematical and General•Jan 1, 1999•5 citations