arXiv:hep-th/0703222·v2·High Energy Physics — Theory
On the second reference state and complete eigenstates of the open XXZ chain
Wen-Li Yang🇨🇳 · Yao-Zhong Zhang🇦🇺
Abstract
The second reference state of the open XXZ spin chain with non-diagonal boundary terms is studied. The associated Bethe states exactly yield the second set of eigenvalues proposed recently by functional Bethe Ansatz. In the quasi-classical limit, two sets of Bethe states give the complete eigenstates of the associated Gaudin model.
Comments: Latex file, 12 pages; New version appears in JHEP