On explicit free field realization of current algebras

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• 作者：Wen-Li Yang ; Yao-Zhong Zhang
• 关键词：Conformal field theory ; Affine current algebra ; Free field realization
• 刊名：Nuclear Physics B
• 出版年：2008
• 期刊代码：45_05503213
• 类别：ph
• 出版时间：11 September 2008
• 卷：800
• 期：3
• 页码：527-546
• 文件大小：228 K

摘要

We construct the explicit free field representations of the current algebras so(2n)_k, so(2n+1)_k and sp(2n)_k for a generic positive integer n and an arbitrary level k. The corresponding energy–momentum tensors and screening currents of the first kind are also given in terms of free fields.