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Exact solution of the alternating XXZ spin chain with generic non-diagonal boundaries |
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| Authors: | Junpeng Cao Wen-Li Yang Kangjie Shi Yupeng Wang |
| Institution: | 1. Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China;2. Collaborative Innovation Center of Quantum Matter, Beijing, China;3. Institute of Modern Physics, Northwest University, Xian 710069, China;4. Beijing Center for Mathematics and Information Interdisciplinary Sciences, Beijing 100048, China |
| Abstract: | The integrable XXZ alternating spin chain with generic non-diagonal boundary terms specified by the most general non-diagonal K-matrices is studied via the off-diagonal Bethe Ansatz method. Based on the intrinsic properties of the fused R-matrices and K-matrices, we obtain certain closed operator identities and conditions, which allow us to construct an inhomogeneous T−Q relation and the associated Bethe Ansatz equations accounting for the eigenvalues of the transfer matrix. |
| Keywords: | Spin chain Reflection equation Bethe Ansatz T&minus Q |
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