Gaudin hypothesis for theXYZspin chain

Yasuhiro Fujii, Miki Wadati
1999 Journal of Physics A: Mathematical and General  
The XYZ spin chain is considered in the framework of the generalized algebraic Bethe ansatz developed by Takhtajan and Faddeev. The sum of norms of the Bethe vectors is computed and expressed in the form of a Jacobian. This result corresponds to the Gaudin hypothesis for the XYZ spin chain.
doi:10.1088/0305-4470/32/48/302 fatcat:rddyy7gmxjaepodliag47i5loa