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Exact string backgrounds from WZW models based on non-semi-simple groups

Konstadinos Sfetsos
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Abstract

We formulate WZW models based on a centrally extended version of the Euclidean group in $d$-dimensions. We obtain string backgrounds corresponding to conformal $\s$-models in $D=d^2$ space-time dimensions with exact central charge $c=d^2$ and $d(d-1)/2$ null Killing vectors. By identifying the corresponding conformal field theory we show that the one loop results coincide with the exact ones up to a shifting of a parameter.

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Konstadinos Sfetsos. 1993-11-17. Exact string backgrounds from WZW models based on non-semi-simple groups. https://doi.org/10.1142/s0217751x94001916

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