V2EX eigenmode

Eigenmode

释义 Definition

eigenmode(本征模态/特征模态):指在给定边界条件下,一个系统(如振动系统、波导、腔体或量子系统)能够以固定空间形状与对应本征频率(或本征值)稳定存在的“模式”。常与 eigenfrequency(本征频率)或 eigenvalue(本征值)一起出现。

发音 Pronunciation (IPA)

/anmod/

例句 Examples

The cavity supports several eigenmodes.
这个谐振腔支持多种本征模态。

By solving the boundary-value problem, we can identify the dominant eigenmode and predict how energy will distribute throughout the waveguide.
通过求解边值问题,我们可以确定占主导的本征模态,并预测能量将如何在波导中分布。

词源 Etymology

eigen- 来自德语 eigen,意思是“自身的、固有的”。在数学与物理中,eigenvalue / eigenvector 等术语沿用德语前缀,强调“系统自身固有的性质”。mode 源自拉丁语 modus(方式、尺度),在物理中表示“振动/波动的形态”。合在一起,eigenmode 就是“系统固有的模式”。

相关词 Related Words

文献与著作 Notable Works

  • Principles of Optics(Born & Wolf,《光学原理》):讨论光学腔、波导与电磁场的模态(包括本征模态)分析。
  • Classical Electrodynamics(J. D. Jackson,《经典电动力学》):在边界条件与电磁场展开中常涉及本征函数/本征模态思想。
  • The Feynman Lectures on Physics(费曼《物理学讲义》):在振动、波与谐振主题中以“正常模/模态”的方式呈现与本征模态密切相关的概念。
  • Quantum Mechanics(Cohen-Tannoudji 等,《量子力学》):以本征态(eigenstates)与本征值问题为核心框架,与“本征模态”的数学结构一致。
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