南部-戈德斯通定理（Nambu-Goldstone Theorem）指連續對稱性被自發破缺後必存在零質量玻色粒子（南部-金石玻色子、Nambu-Goldstone bosons）這一定論，此粒子被稱為戈德斯通玻色子（或稱南部-戈德斯通玻色子）。這個定理在粒子物理中有着重要應用，如π介子就是對應着近似手徵對稱性破缺的戈德斯通玻色子。
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證明
參看
- Peskin Schroeder. Intro QFT. Chapter 11.
- Anthony Zee. 徐一鴻，Quantum Field Theory in a Nutshell.
參閱
參考文獻
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