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词汇 Wavevector
分类 英语词汇 英语翻译词典
释义

Wavevector

中文百科

波矢 Wave vector

（重定向自Wavevector）
当波行进时，给定点的值以正弦作正弦振动。
Wavelength of a sine wave, λ, can be measured between any two consecutive points with the same phase, such as between adjacent crests, or troughs, or adjacent zero crossings with the same direction of transit, as shown.
在这篇文章内，矢量与标量分别用粗体与斜体显示。例如，位置矢量通常用\mathbf{r}\,\!表示；而其大小则用r\,\!来表示。四维矢量用加有标号的斜体显示。例如，{x}^{\mu}\,\!或{x}_{\mu}\,\!。为了避免歧意，四维矢量的斜体与标号之间不会有括号。例如，(x)^2\,\!表示x\,\!平方；而{x}^2\,\!是{x}^{\mu}\,\!的第二个分量。

波矢量是波的矢量表示方法。波矢量是一个矢量，其大小表示波数（k=|{\mathbf k}| = 2\pi/\lambda），其方向表示波传播的方向。

波矢量在狭义相对论背景下可定义为四维矢量。

英语百科

Wave vector 波矢

（重定向自Wavevector）
Wavelength of a sine wave, λ, can be measured between any two consecutive points with the same phase, such as between adjacent crests, or troughs, or adjacent zero crossings with the same direction of transit, as shown.
当波行进时，给定点的值以正弦作正弦振动。

In physics, a wave vector (also spelled wavevector) is a vector which helps describe a wave. Like any vector, it has a magnitude and direction, both of which are important: Its magnitude is either the wavenumber or angular wavenumber of the wave (inversely proportional to the wavelength), and its direction is ordinarily the direction of wave propagation (but not always, see below).
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