Integrable supersymmetric correlated electron chain with open boundaries
classification
solv-int
nlin.SI
keywords
openboundariesansatzapproachbethechainclassesconstruct
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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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