Free Boson Representation of $D{Y}_{\hslash }(s{l}_2{)}_k$ and the Deformation of the Feigin-Fuchs

X. M. Ding, L. Zhao

A realization of the Yangian double with center $D{Y}_{\hslash }(s{l}_2{)}_k$ of level $k(\ne 0,-2)$ in terms of free boson fields is constructed. The screening currents are also presented,…