V2EX monopole

Monopole

释义 Definition

monopole(名词)常指“单极”:在物理学中,指只具有一种极性的源(最常见语境是磁单极子,即假设存在的“只有北极或只有南极”的磁性粒子/场源)。在部分经济学语境中也可指“垄断者/垄断”(较少见,用法更偏术语)。

发音 Pronunciation (IPA)

/mnopol/

例句 Examples

A magnetic monopole has never been observed in experiments.
磁单极子至今仍未在实验中被观测到。

If a monopole existed, Maxwell’s equations would need a symmetric form that includes magnetic charge, which would reshape how we describe electromagnetic fields.
如果磁单极子确实存在,麦克斯韦方程组就需要引入磁荷而变得更对称,从而改变我们对电磁场的描述方式。

词源 Etymology

来自希腊语构词:**mono-**(“单一”)+ -pole(“极”,源自 polos,与“极点/轴”相关)。字面意思就是“单一的极”,因此被用来描述“只呈现一个极性”的理想化物理对象。

相关词 Related Words

文学与著名作品 Literary & Notable Works

  • P. A. M. Dirac, Quantised Singularities in the Electromagnetic Field(1931,论文;提出“狄拉克单极子”概念)
  • J. D. Jackson, Classical Electrodynamics(经典教材;讨论磁单极子与对称形式的麦克斯韦方程)
  • D. J. Griffiths, Introduction to Electrodynamics(入门教材;以教学方式介绍单极子作为思想实验与拓展)
  • G. ’t Hooft, Magnetic Monopoles in Unified Gauge Theories(1974,论文;“’t HooftPolyakov 单极子”相关)
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