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Integrable extended Hubbard models with boundary Kondo impurities

Published online by Cambridge University Press:  17 April 2009

Anthony J. Bracken ,
Xiang-Yu Ge ,
Mark D. Gould  and
Huan-Qiang Zhou
Anthony J. Bracken
Affiliation:
Centre for Mathematical Physics, The University of Queensland, Brisbane, Qld 4072, Australia e-mail: [email protected]
Xiang-Yu Ge
Affiliation:
Centre for Mathematical Physics, The University of Queensland, Brisbane, Qld 4072, Australia e-mail: [email protected]
Mark D. Gould
Affiliation:
Centre for Mathematical Physics, The University of Queensland, Brisbane, Qld 4072, Australia e-mail: [email protected]
Huan-Qiang Zhou
Affiliation:
Centre for Mathematical Physics, The University of Queensland, Brisbane, Qld 4072, Australia e-mail: [email protected]
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Abstract

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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.

Type
Research Article
Information
Bulletin of the Australian Mathematical Society , Volume 64 , Issue 3 , December 2001 , pp. 445 - 467
Copyright
Copyright © Australian Mathematical Society 2001

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