南部-戈德斯通定理（Nambu-Goldstone Theorem）指连续对称性被自发破缺后必存在零质量玻色粒子（南部-金石玻色子、Nambu-Goldstone bosons）这一定论，此粒子被称为戈德斯通玻色子（或称南部-戈德斯通玻色子）。这个定理在粒子物理中有着重要应用，如π介子就是对应着近似手征对称性破缺的戈德斯通玻色子。
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证明
参看
- Peskin Schroeder. Intro QFT. Chapter 11.
- Anthony Zee. 徐一鸿，Quantum Field Theory in a Nutshell.
参阅
参考文献
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