V2EX quantum chromodynamics

Quantum Chromodynamics

释义 Definition(中文)

量子色动力学(常缩写 QCD):描述强相互作用的量子场论,是粒子物理“标准模型”的一部分。它以夸克胶子为基本对象,认为“色荷”(color charge)有三种类型,并用 SU(3) 规范对称性来刻画它们的相互作用;该理论解释了如夸克禁闭强子(如质子、中子)的结构等现象。

发音 Pronunciation(IPA)

/kwntm kromodanmks/

例句 Examples

Quantum chromodynamics explains how quarks are held together by gluons.
量子色动力学解释了夸克如何通过胶子被束缚在一起。

Although the equations of quantum chromodynamics are well known, calculating the behavior of strongly interacting matter often requires large-scale numerical simulations.
尽管量子色动力学的方程形式已很明确,但要计算强相互作用物质的行为,往往仍需要大规模数值模拟。

词源 Etymology(中文)

quantum 来自拉丁语 quantus(“多少、数量”),在现代物理中指“量子化”的理论框架;chromo- 源自希腊语 chrōma(“颜色”),这里的“颜色”是借用的物理术语,指 色荷 而非日常颜色;dynamics 来自希腊语 dynamis(“力量、作用力”),表示相互作用与运动规律。整体名称直译即“关于色荷的量子动力学”,对应强相互作用的理论描述。

相关词 Related Words

文学与著作 Literary Works(出现示例)

  • Introduction to Elementary Particles(David J. Griffiths):以教学方式介绍标准模型内容,包含量子色动力学的基本概念与应用。
  • An Introduction to Quantum Field Theory(Michael E. Peskin & Daniel V. Schroeder):系统讲解量子场论,并以 QCD 作为核心例子之一。
  • The Quantum Theory of Fields(Steven Weinberg):更高阶与更系统的理论著作,涉及规范场论与 QCD 的框架与推导。
  • QCD and Collider Physics(R. K. Ellis, W. J. Stirling, B. R. Webber):以实验与对撞机现象为背景,详细讨论 QCD 的可观测预言与计算方法。
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