V2EX qcd

QCD

释义 Definition

QCDQuantum Chromodynamics 的缩写,中文常译为量子色动力学:研究夸克与胶子之间相互作用的量子场论,是粒子物理中描述强相互作用(强力)的基本理论。(也可指相关计算与模型,如 “QCD corrections / QCD calculations”。)

发音 Pronunciation

IPA: /kju.sidi/

例句 Examples

QCD explains how quarks are held together inside protons and neutrons.
QCD 解释了夸克如何在质子和中子内部被束缚在一起。

Although QCD is well tested, calculating low-energy processes often requires complex numerical methods like lattice QCD.
尽管 QCD 已被大量实验检验,但计算低能过程往往需要像“格点 QCD”这样的复杂数值方法。

词源 Etymology

QCD 是由 Quantum Chromodynamics 的首字母组成的缩略语(initialism)。其中 chromo-(色) 并非指日常颜色,而是夸克的一种“色荷”量子数的比喻性命名;该术语在 20 世纪 70 年代强相互作用理论发展中被确立并广泛使用。

相关词 Related Words

文学与作品 Literary Works

  • Peskin & Schroeder:《An Introduction to Quantum Field Theory》(《量子场论导论》)中大量讨论 QCD 的规范理论结构与重整化等主题。
  • Steven Weinberg:《The Quantum Theory of Fields》(《场的量子论》)对包括 QCD 在内的现代场论框架有系统阐述。
  • David J. Griffiths:《Introduction to Elementary Particles》(《基本粒子导论》)以教学方式介绍 QCD、夸克模型与强相互作用现象。
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