On the separation of variables for the modular XXZ magnet and the lattice Sinh-Gordon models

Sergey E. Derkachov, Karol K. Kozlowski, Alexander N. Manashov

We construct the generalised Eigenfunctions of the entries of the monodromy matrix of the $N$-site modular XXZ magnet and show, in each case, that these form a complete orthogonal…