Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
1997-10-04
Phys.Lett. B420 (1998) 285-288
Physics
High Energy Physics
High Energy Physics - Theory
6 pages,Latex
Scientific paper
10.1016/S0370-2693(97)01547-5
Operator quantization of the WZNW theory invariant with respect to an affine Kac-Moody algebra $\hat g$ with constrained $\hat {u}(1)^d$ currents is performed using Dirac's procedure. Upon quantization the initial energy-momentum tensor is replaced by the $g/u(1)^d$ coset construction. The $\hat {su}(2)$ WZNW theory with a constrained $\hat u(1)$ current is equivalent to the $su(2)/u(1)$ conformal field theory.
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