Gauging a Non-Semi-Simple WZW Model

Details Gauging a Non-Semi-Simple WZW Model Gauging a Non-Semi-Simple WZW Model

1993-11-01

arxiv.org/abs/hep-th/9311010v4

Phys.Lett. B324 (1994) 335-344

Physics

High Energy Physics

High Energy Physics - Theory

17 pages, harvmac, THU-93/30 (The discussion and reference sections are expanded)

Scientific paper

10.1016/0370-2693(94)90203-8

We consider gauged WZW models based on a four dimensional non-semi-simple group. We obtain conformal $\s$-models in $D=3$ spacetime dimensions (with exact central charge $c=3$) by axially and vectorially gauging a one-dimensional subgroup. The model obtained in the axial gauging is related to the $3D$ black string after a correlated limit is taken in the latter model. By identifying the CFT corresponding to these $\s$-models we compute the exact expressions for the metric and dilaton fields. All of our models can be mapped to flat spacetimes with zero antisymmetric tensor and dilaton fields via duality transformations.

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