Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
1998-02-11
Phys.Lett. B425 (1998) 291-299
Physics
High Energy Physics
High Energy Physics - Theory
Plain TeX file, 15 pages
Scientific paper
10.1016/S0370-2693(98)00157-9
The quantum Wess-Zumino-Witten $\to$ Liouville reduction is formulated using the phase space path integral method of Batalin, Fradkin, and Vilkovisky, adapted to theories on compact two dimensional manifolds. The importance of the zero modes of the Lagrange multipliers in producing the Liouville potential and the WZW anomaly, and in proving gauge invariance, is emphasised. A previous problem concerning the gauge dependence of the Virasoro centre is solved.
O'Raifeartaigh Lochlain
Sreedhar V. V.
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