“quasiparticle”的英文意思_释义_用法

单词

quasiparticle

释义

ˈquasiˌparticle Physics.
[f. quasi adv. and prefix + particle n.]
An excitation of a many-body system that has some of the properties of a free particle, such as momentum and position.
1957R. T. Beyer tr. L. D. Landau in Soviet Physics: JETP III. 921/1 The role of the gas particles in this classification is assumed by the ‘elementary excitations’ (quasi-particles), each of which possesses a definite momentum.1968C. G. Kuper Introd. Theory Superconductivity xii. 193 As the idea of quasiparticles has developed, it has come to permeate the whole of solid⁓state theory. Thus, for example, the Debye theory of specific heat can be regarded as a quasiparticle theory in which the quasiparticles are phonons.1968[see exciton].1974D. M. Adams Inorg. Solids ix. 283 Phonons are the quasiparticles of energy associated with excitation of one of the modes of vibration of the perfect crystal.

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