An open-boundary integrable model of three coupled XY spin chains
Anthony J. Bracken, Xiang-Yu Ge, Yao-Zhong Zhang, Huan-Qiang Zhou
Abstract
The integrable open-boundary conditions for the model of three coupled one-dimensional XY spin chains are considered in the framework of the quantum inverse scattering method. The diagonal boundary K-matrices are found and a class of integrable boundary terms is determined. The boundary model Hamiltonian is solved by using the coordinate space Bethe ansatz technique and Bethe ansatz equations are derived.
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