We study how to compute the operator product expansion coefficients in the exact renormalization group formalism. After discussing possible strategies, we consider some examples explicitly, within the ε expansions, for the Wilson-Fisher fixed points of the real scalar theory in d = 4 ? ε dimensions and the Lee-Yang model in d = 6 ? ε dimensions. Finally we discuss how our formalism may be extended beyond perturbation theory.
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机译：我们研究如何在确切的重新运行组形式主义中计算操作员产品扩展系数。 在讨论可能的策略后，我们在ε扩展内明确地考虑一些示例，对于D = 4的实际标量理论的威尔逊渔业固定点？ D = 6的ε尺寸和lee-yang模型？ ε维度。 最后，我们讨论了我们的形式主义如何延长扰动理论。
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