V2EX goldstone boson

Goldstone Boson

释义 Definition

Goldstone 玻色子(更常见称呼:NambuGoldstone 玻色子):在自发对称性破缺发生时,理论上会出现的无质量(或近似无质量)标量激发/准粒子。它反映了系统基态选择了某个方向,从而产生沿“退化真空”方向的低能集体振动。(在有规范场的情况下,这类模式可能会被“吃掉”,表现为规范玻色子获得质量。)

发音 Pronunciation (IPA)

/oldston bozn/

例句 Examples

Goldstone bosons appear when a continuous symmetry is spontaneously broken.
当连续对称性发生自发破缺时,会出现 Goldstone 玻色子。

In many quantum field theories, the presence or absence of Goldstone bosons helps determine the low-energy behavior of the system.
在许多量子场论中,Goldstone 玻色子的存在与否有助于决定体系的低能行为。

词源 Etymology

“Goldstone”来自物理学家 Jeffrey Goldstone 的姓氏;该概念与 Yoichiro Nambu(南部阳一郎) 的工作密切相关,因此更完整、常用的术语是 NambuGoldstone boson(南部戈德斯通玻色子)。词尾“boson(玻色子)”源自 Satyendra Nath Bose(玻色) 的姓氏,用来指遵循玻色统计的一类粒子。

相关词 Related Words

文学与著作 Literary Works

  • J. Goldstone (1961), Field Theories with “Superconductor” Solutions(提出并讨论与自发对称性破缺相关的质量为零的模)
  • J. Goldstone, A. Salam, S. Weinberg (1962), Broken Symmetries(经典论文,系统化阐述相关结论)
  • Steven Weinberg, The Quantum Theory of Fields(量子场论权威教材,讨论自发对称性破缺与 Goldstone 模)
  • Michael Peskin & Daniel Schroeder, An Introduction to Quantum Field Theory(常用教材,涵盖 Goldstone 玻色子与 Higgs 机制)
  • A. Zee, Quantum Field Theory in a Nutshell(以较直观方式介绍该概念及其物理含义)
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