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单词 dispersion relation
释义 dispersion relation
[dǝ`spǝr·zhǝn ri´lā·shǝn]
NUCLEAR PHYSICS
A relation between the cross section for a given effect and the de Broglie wavelength of the incident particle, which is similar to a classical dispersion formula.
PHYSICS
An integral formula relating the real and imaginary parts of some function of frequency or energy, such as a refractive index or scattering amplitude, based on the causality principle and the Cauchy integral formula.
PLASMA PHYSICS
A relation between the radian frequency and the wave vector of a wave motion or instability in a plasma.
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