V2EX quantum field

Quantum Field

释义 Definition

量子场:现代物理学中的基本概念,指充满整个空间与时间的“场”,其激发(振动模式)以量子化的方式表现为粒子。量子场论中,电子、光子等都被视为相应量子场的激发。(该短语在不同语境下也可泛指“量子场论中的场”。)

发音 Pronunciation (IPA)

/kwn.tm fild/

例句 Examples

Quantum fields are everywhere, even in empty space.
量子场无处不在,甚至在看似“空无一物”的空间中也是如此。

In quantum field theory, particles can be understood as excitations of a quantum field, and their interactions arise from how these fields couple and fluctuate.
在量子场论中,粒子可以理解为量子场的激发,而相互作用则来自这些场如何耦合并发生涨落。

词源 Etymology

quantum 源自拉丁语 quantum(“多少、数量”),在物理学里引申为“最小的离散单位(量子)”;field 原意为“田野、场地”,在科学语境中发展为“分布在空间中的物理量(场)”。合起来 quantum field 指“以量子规律描述的物理场”。

相关词 Related Words

文学与名著 Literary Works

  • Quantum Field Theory in a Nutshell(A. Zee)
  • The Quantum Universe: Everything That Can Happen Does Happen(Brian Cox & Jeff Forshaw)
  • QED: The Strange Theory of Light and Matter(Richard P. Feynman)
  • The Road to Reality(Roger Penrose)
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