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来自维基百科,自由的百科全书
在量子场论和统计力学中,1/N展开(又称为大N展开)是一种对具有内禀对称群(例如SO(N)或SU(N))的量子场论的微扰分析方法。它对分析对象的属性以的幂展开,而是一个很小的参数。
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