Effective Action and Exact Geometry in Chiral Gauged WZW Models

Details Effective Action and Exact Geometry in Chiral Gauged WZW Models Effective Action and Exact Geometry in Chiral Gauged WZW Models

1993-05-17

arxiv.org/abs/hep-th/9305074v3

Physics

High Energy Physics

High Energy Physics - Theory

19 pages, harvmac, USC-93/HEP-S1, (A typo in eq. 4.5 is corrected and a note is added )

Scientific paper

Following recent work on the effective quantum action of gauged WZW models, we suggest such an action for {\it chiral} gauged WZW models which in many respects differ from the usual gauged WZW models. Using the effective action we compute the conformally exact expressions for the metric, the antisymmetric tensor, and the dilaton fields in the $\s$-model arising from a general {\it chiral } gauged WZW model. We also obtain the general solution of the geodesic equations in the exact geometry. Finally we consider in some detail a three dimensional model which has certain similarities with the three dimensional black string model. Finally we consider in some detail a three dimensional model which has certain similarities with the three dimensional black string model.

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