Coset Models Obtained by Twisting WZW Models and Stringy Charged Black Holes in Four Dimensions
Abstract
We show that several WZW coset models can be obtained by applying O(d,d) symmetry transformations (referred to as twisting) on WZW models. This leads to a conjecture that WZW models gauged by U(1)n subgroup can be obtained by twisting (ungauged) WZW models. In addition, a class of solutions that describe charged black holes in four dimensions is derived by twisting SL(2,R)× SU(2) WZW.
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