Exact solution of the spin-s Heisenberg chain with generic non-diagonal boundaries
arXiv:1405.2692 · doi:10.1007/JHEP02(2015)036
Abstract
The off-diagonal Bethe ansatz method is generalized to the high spin integrable systems associated with the su(2) algebra by employing the spin-s isotropic Heisenberg chain model with generic integrable boundaries as an example. With the fusion techniques, certain closed operator identities for constructing the functional T-Q relations and the Bethe ansatz equations are derived. It is found that a variety of inhomogeneous T-Q relations obeying the operator product identities can be constructed. Numerical results for two-site s=1 case indicate that an arbitrary choice of the derived T-Q relations is enough to give the complete spectrum of the transfer matrix.
26 pages, 2 tables, 1 figure, published version
References in corpus (5)
- Bethe Ansatz Solution of the Asymmetric Exclusion Process with Open Boundaries
- Antiperiodic spin-1/2 XXZ quantum chains by separation of variables: Complete spectrum and form factors
- Functional relations from the Yang-Baxter algebra: Eigenvalues of the XXZ model with non-diagonal twisted and open boundary conditions
- Separation of Variables in the open XXX chain
- Exact solution of the Izergin-Korepin model with general non-diagonal boundary terms