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Bethe-root configurations and spectral degeneracy in the open XXZ chain with degenerate boundaries
Shizhang Wu, Shu Chen, Junpeng Cao +1
We investigate the structure of Bethe-root configurations in the spin-1/2 XXZ chain with degenerate open boundaries. The physical solutions of the Bethe Ansatz equations are classi…
Exact spectrum of the XX spin chain with constrained non-diagonal boundary fields
Changqing Liu, Xiaotian Xu, Xin Zhang
We study the exact spectrum of the XX spin chain with constrained non-diagonal boundary fields, which can be analyzed by solving the associated Bethe Ansatz equations. In these equ…
Integrable Stochastic Processes Associated with the Algebra
Guang-Liang Li, Xin Zhang, Junpeng Cao +2
We introduce an integrable stochastic process associated with the quantum group, which can be decomposed into two symmetric simple exclusion processes. We establish the integ…
Generalized Integrable Boundary States in XXZ and XYZ Spin Chains
Xin Qian, Xin Zhang
We investigate integrable boundary states in the anisotropic Heisenberg chain under periodic or twisted boundary conditions, for both even and odd system lengths. Our work demonstr…