paper

Integrable Kondo impurities in the one-dimensional supersymmetric extended Hubbard model

arXiv:cond-mat/9811048 · doi:10.1088/0305-4470/32/28/315

Abstract

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 matrices depending on the local moments of the impurities are presented as a nontrivial 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.

5 pages, RevTex

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