Hidden Isometry in a Chiral Gauged WZW Model
Supriya Kar, Alok Kumar, Gautam Sengupta
Abstract
It is shown that the asymmetric chiral gauging of the WZW models give rise to consistent string backgrounds. The target space structure of the [SL(2,)/ SO(1,1)]L [SL(2,)/U(1)]R model is analyzed and the presence of a hidden isometry in this background is demonstrated. A nonlinear coordinate transformation is obtained which transforms the asymmetric model to the symmetric one, analyzed recently by two of the present authors.
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