Chiral SU(2)_k currents as local operators in vertex models and spin chains

R. Bondesan, J. Dubail, A. Faribault +1

The six-vertex model and its spin-$S$ descendants obtained from the fusion procedure are well-known lattice discretizations of the SU$(2{)}_k$ WZW models, with $k=2S$. It is shown th…