Quantum currents in the Coset Space SU ( 2 ) / U ( 1 )
نویسنده
چکیده
We propose a rational quantum deformed nonlocal currents in the homogenous space SU(2)k/U(1), and in terms of it and a free boson field a representation for the Drinfeld currents of Yangian double at a general level k = c is obtained. In the classical limit h̄ → 0, the quantum nonlocal currents become SU(2)k parafermion, and the realization of Yangian double becomes the parafermion realization of SU(2)k current algebra. PACS: 11.25Hf; 11.30.Rd; 03.65Fd; 02.20.Hj.
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