Quantum currents in the Coset Space SU(2)/U(1)
arXiv:math/0003041
Abstract
We propose a rational quantum deformed nonlocal currents in the homogenous space , and in terms of it and a free boson field a representation for the Drinfeld currents of Yangian double at a general level is obtained. In the classical limit , the quantum nonlocal currents become parafermion, and the realization of Yangian double becomes the parafermion realization of current algebra.
Latex, 9 pages