Exact String Backgrounds from Wzw Models Based on Non-semi-simple Groups
نویسنده
چکیده
We formulate WZW models based on a centrally extended version of the Euclidean group in d-dimensions. We obtain string backgrounds corresponding to conformal σ-models in D = d space-time dimensions with exact central charge c = d 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. ∗ e-mail address: [email protected] 1
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