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arXiv · hep-th/9408144

Conformally Exact Black Hole Perturbed by a Marginal Operator

Kazuo Ghoroku
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Abstract

We have examined effective theory induced by gauged WZW models, in which the tachyon field is added as a marginal operator. Due to this operator added, we must further add the higher order corrections, which modifies the original configuration, to make the theory full-conformally invariant. It has been found that 2d is a critical dimension in the sense that the metric obtained from gauged WZW is modified by the tachyon condensation for $d>2$, but not for $d\le 2$.

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Kazuo Ghoroku. 1994-08-26. Conformally Exact Black Hole Perturbed by a Marginal Operator. https://doi.org/10.1016/0370-2693(95)00057-r

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