Integrable supersymmetric correlated electron chain with open boundaries

Details Integrable supersymmetric correlated electron chain with open boundaries Integrable supersymmetric correlated electron chain with open boundaries

1999-07-02

arxiv.org/abs/solv-int/9907006v1

Nucl. Phys. B 562 (1999) 433-444

Nonlinear Sciences

Exactly Solvable and Integrable Systems

latex, 14 pages

Scientific paper

10.1016/S0550-3213(99)00551-9

We construct an extended Hubbard model with open boundaries from a $R$-matrix
based on the $U_q[Osp(2|2)]$ superalgebra. We study the reflection equation and
find two classes of diagonal solutions. The corresponding one-dimensional open
Hamiltonians are diagonalized by means of the Bethe ansatz approach.

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