6-VERTEX MODEL WITH ROTATED BOUNDARY-CONDITIONS

We investigate the six-vertex model on a square lattice rotated throug h an arbitrary angle with respect to the coordinate axes, a model rece ntly introduced by Litvin and Priezzhev. Auxiliary vertices are used t o define an inhomogeneous system which leads to a one-parameter family of commuting transfer matrices. A product of commuting transfer matri ces can be interpreted as a transfer matrix acting on zigzag walls in the rotated system. Using an equation for commuting transfer matrices, we calculate their eigenvalues. Finite-size properties of the model a re discussed from the viewpoint of the conformal field theory.