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|Paper IPM / P / 6516||
We introduce a unified method which can be applied to any WZW model at arbitrary level to search systematically for modular invariant physical partition functions. Our method is based essentially on modding out a known theory on group manifold G by a discrete group G. We apply our method to ∧su(n) with n=2, 3, 4, 5, 6 and to ∧g2 models, and obtain all the known partition functions and some new ones, and give explicit expressions for all of them.
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