…In fact, the equations of motion after the transformation are mutually independent, as shown below. The new coordinate system {ξ i } is called the normal coordinate system of the original harmonic oscillator system, and each oscillator ξ i is called the normal mode of the original oscillator system. The above group properties are also present in more general (not necessarily linear) coordinate transformations (1). … *Some of the terminology that refers to "normal mode" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…実際,変換後の運動方程式は,のように互いに独立となる。新座標系{ξi}は元の調和振動子系の規準座標系normal coordinate systemと呼ばれるもので,また各振動子ξiを元の振動子系の規準モードという。 より一般な(必ずしも一次ではない)座標変換(1)においても上に述べた群の性質が備わっている。… ※「規準モード」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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