quantitykind:AngularWavenumber

Type
Description

"wavenumber" is the spatial frequency of a wave - the number of waves that exist over a specified distance. More formally, it is the reciprocal of the wavelength. It is also the magnitude of the wave vector.

Properties
"wavenumber" is the spatial frequency of a wave - the number of waves that exist over a specified distance. More formally, it is the reciprocal of the wavelength. It is also the magnitude of the wave vector.
$k = \frac{2\pi}{\lambda}= \frac{2\pi\upsilon}{\upsilon_p}=\frac{\omega}{\upsilon_p}$, where $\upsilon$ is the frequency of the wave, $\lambda$ is the wavelength, $\omega = 2\pi \upsilon$ is the angular frequency of the wave, and $\upsilon_p$ is the phase velocity of the wave. Alternatively: $k = \frac{p}{\hbar}$, where $p$ is the linear momentum of quasi free electrons in an electron gas and $\hbar$ is the reduced Planck constant ($h$ divided by $2\pi$); for phonons, its magnitude is $k = \frac{2\pi}{\lambda}$, where $\lambda$ is the wavelength of the lattice vibrations.
Annotations
Kreiswellenzahl(de)
angular repetency(en)
repetencja kątowa(pl)
repetência angular(pt)
répétence angulaire(fr)
تكرار زاوى(ar)
"wavenumber" is the spatial frequency of a wave - the number of waves that exist over a specified distance. More formally, it is the reciprocal of the wavelength. It is also the magnitude of the wave vector.
Kreisrepetenz(de)
angular wavenumber(en)
liczba falowa kątowa(pl)
nombre d'onde angulaire(fr)
numero d'onda angolare(it)
número de onda angular(es)
número de onda angular(pt)
عدد موجى زاوى(ar)

belongs to SOQ-ISO

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