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Bulletin of the Australian Mathematical Society

Integrable extended Hubbard models with boundary Kondo impurities

Anthony J. Bracken, Xiangyu Ge, M. D. Gould, Huan-Qiang Zhou

Published Dec 1, 2001• 0 citations
Publisher

Abstract

Three kinds of integrable Kondo impurity additions to one-dimensional q-deformed extended Hubbard models are studied by means of the boundary Z2-graded quantum inverse scattering method. The boundary K matrices depending on the local magnetic moments of the impurities are presented as nontrivial realisations of the reflection equation algebras in an impurity Hilbert space. The models are solved by using the algebraic Bethe ansatz method, and the Bethe ansatz equations are obtained.

DOI
10.1017/s0004972700019912

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Integrable Kondo impurity in one-dimensional q-deformed t−Jt-Jt−J models
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