Hostname: page-component-586b7cd67f-2plfb Total loading time: 0 Render date: 2024-11-23T21:45:27.887Z Has data issue: false hasContentIssue false

Boundary two-parameter eight-state supersymmetric fermion model and Bethe ansatz solution

Published online by Cambridge University Press:  17 April 2009

Anthony J. Bracken
Affiliation:
Department of MathematicsThe University of QueenslandQueensland 4072, Australia e-mail: [email protected]
Xiang-Yu Ge
Affiliation:
Department of MathematicsThe University of QueenslandQueensland 4072, Australia e-mail: [email protected]
Yao-Zhong Zhang
Affiliation:
Department of MathematicsThe University of QueenslandQueensland 4072, Australia e-mail: [email protected]
Huan-Qiang Zhou
Affiliation:
Department of MathematicsThe University of QueenslandQueensland 4072, Australia e-mail: [email protected]
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

The recently introduced two-parameter eight-state Uq [gl(3|1)] supersymmetric fermion model is extended to include boundary terms. Nine classes of boundary conditions are constructed, all of which are shown to be integrable via the graded boundary quantum inverse scattering method. The boundary systems are solved by using the coordinate Bethe ansatz and the Bethe ansatz equations are given for all nine cases.

Type
Research Article
Copyright
Copyright © Australian Mathematical Society 1999

References

[1]Asakawa, H. and Suzuki, M., ‘Finite-size corrections in the XXX model and the Hubbard model with boundary fields’, J. Phys. A 29 (1996), 225–145.CrossRefGoogle Scholar
[2]Bariev, R.Z., ‘Integrable model of interacting XY chains’, J. Phys. A 24 (1991), L919–L923.CrossRefGoogle Scholar
[3]Bariev, R.Z., Klümper, A. and Zittartz, J., ‘A new integrable two-parameter model of strongly correlated electrons in one-dimension’, Europhys. Lett. 32 (1995), 8590.CrossRefGoogle Scholar
[4]Bracken, A.J., Ge, X.-Y., Zhang, Y.-Z. and Zhou, H.-Q., ‘Integrable open-boundary conditions for the g-deformed super symmetric U model of strongly correlated electrons’, Nuclear Phys. B 516 (1998), 588602.CrossRefGoogle Scholar
[5]Bracken, A.J., Ge, X.-Y., Zhang, Y.-Z. and Zhou, H.-Q., ‘An open-boundary integrable model of three coupled XY spin chains’, Nuclear Phys. B 516 (1998), 603622.CrossRefGoogle Scholar
[6]Bracken, A.J., Gould, M.D., Links, J.R. and Zhang, Y.-Z., ‘New supersymmetric and exactly solvable model of correlated electrons’, Phys. Rev. Lett. 74 (1995), 27682771.CrossRefGoogle ScholarPubMed
[7]Vega, H.J. de and Gonzalez-Ruiz, A., ‘Boundary k-matrices for the six vertex and the n(2n – 1)A n-1 vertex models’, J. Phys. A 26 (1993), L519–L524.CrossRefGoogle Scholar
[8]Essler, F.H.L. and Korepin, V.E., Exactly solvable models of strongly correlated electrons (World Scientific, Singapore, 1994).Google Scholar
[9]Ge, X.-Y., Gould, M.D., Zhang, Y.-Z. and Zhou, H.-Q., ‘A new two-parameter integrable model of strongly correlated fermions with quantum superalgegra symmetry’, J. Phys. A 31 (1998), 52335239.CrossRefGoogle Scholar
[10]Gonzalez-Ruiz, A., ‘Integrable open-boundary conditions for the supersymmetric TJ model’, Nuclear Phys. B 424 (1994), 468486.CrossRefGoogle Scholar
[11]Gould, M.D., Hibberd, K.E., Links, J.R. and Zhang, Y.-Z., ‘Integrable electron model with correlated hopping and quantum supersymmetry’, Phys. Lett. A 212 (1996), 156160.CrossRefGoogle Scholar
[12]Gould, M.D., Zhang, Y.-Z. and Zhou, H.-Q., ‘Eight-state supersymmetric U model of strongly correlated fermions’, Phys. Rev. B 57 (1998), 94989501.CrossRefGoogle Scholar
[13]Mezincescu, L. and Nepomechie, R.I., ‘Integrable open spin chains with non-symmetric R-matrices’, J. Phys. A 24 (1991), L17–L23.CrossRefGoogle Scholar
[14]Shiroishi, M., Wadati, M., ‘Bethe ansatz equation for the Hubbard model with boundary fields’, J. Phys. Soc. Japan 66 (1997), 14.CrossRefGoogle Scholar
[15]Sklyanin, E.K., ‘Boundary conditions for integrable quantum sytems’, J. Phys. A 21 (1988), 23752389.CrossRefGoogle Scholar
[16]Zhang, Y.-Z. and Zhou, H.-Q., ‘Quantum integrability and exact solution of the super-symmetric U model with boundary terms’, Phys. Reu. B 58 (1998), 5153.CrossRefGoogle Scholar
[17]Zhang, Y.-Z. and Zhou, H.-Q., ‘New integrable boundary conditions for the (q-deformed supersymmetric U model and Bethe ansatz equations)’, Phys. Lett. A 244 (1998), 427431.CrossRefGoogle Scholar
[18]Zhou, H.-Q., ‘Quantum integrability for the one-dimensional Hubbard open chain’, Phys. Rev. B 54 (1996), 4143.CrossRefGoogle ScholarPubMed
[19]Zhou, H.-Q., ‘Integrable open-boundary conditions for the one-dimensional Bariev chain’, Phys. Rev. B 53 (1996), 50985100.CrossRefGoogle ScholarPubMed