Integrable boundary impurities in the t-J model with different gradings

Details Integrable boundary impurities in the t-J model with different gradings Integrable boundary impurities in the t-J model with different gradings

2000-08-29

arxiv.org/abs/cond-mat/0008429v1

Nucl.Phys. B599 (2001) 561-581

Physics

Condensed Matter

Strongly Correlated Electrons

Latex file, 20 pages

Scientific paper

10.1016/S0550-3213(01)00031-1

We investigate the generalized supersymmetric $t-J$ model with boundary impurities in different gradings. All three different gradings: fermion, fermion, boson (FFB), boson, fermion, fermion (BFF) and fermion, boson, fermion (FBF), are studied for the generalized supersymmetric $t-J$ model. Boundary K-matrix operators are found for the different gradings. By using the graded algebraic Bethe ansatz method, we obtain the eigenvalues and the corresponding Bethe ansatz equations for the transfer matrix.

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