quasiparticlen.

Brit.

/ˈkweɪzʌɪˌpɑːtᵻkl/,

/ˈkwɑːzɪˌpɑːtᵻkl/, U.S.

/ˈkwɑziˌpɑrdək(ə)l/,

/ˈkweɪˌzaɪˌpɑrdək(ə)l/

Origin: Formed within English, by compounding; apparently partly modelled on a Russian lexical item. Etymons: quasi adv., particle n.

Etymology: < quasi adv. + particle n. In specific sense apparently after Russian kvazičastica (L. D. Landau 1956, in Žurnal eksp. i teor. fiziki 30 1058, the source translated in quot. 1957).

Physics.

A thing that has some properties of a particle but is not a particle in the traditional or full sense; spec. an excitation of a many-body system, esp. a crystal lattice, that has some of the properties of a free particle, such as momentum and position.

ΘΚΠ

the world > matter > physics > quantum theory > [noun] > quasiparticle

quasiparticle1926

1926 Proc. Royal Soc. A. 113 444 We cannot be satisfied without the correct statistics of light quanta as quasi-particles.

1957 R. T. Beyer tr. L. D. Landau in Soviet Physics: JETP 3 921/1 The role of the gas particles in this classification is assumed by the ‘elementary excitations’ (quasi-particles), each of which possesses a definite momentum.

1968 C. 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.

1974 D. 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.

2003 tr. F. Leroy Cent. of Nobel Prizes Recipients 220 This new quantum..revealed the possibility of the existence of quasiparticle excitations carryng an exact fraction of the elemental electric charge.

This entry has been updated (OED Third Edition, December 2007; most recently modified version published online March 2022).

单词	quasiparticle
释义	quasiparticlen. Brit. /ˈkweɪzʌɪˌpɑːtᵻkl/, /ˈkwɑːzɪˌpɑːtᵻkl/, U.S. /ˈkwɑziˌpɑrdək(ə)l/, /ˈkweɪˌzaɪˌpɑrdək(ə)l/ Origin: Formed within English, by compounding; apparently partly modelled on a Russian lexical item. Etymons: quasi adv., particle n. Etymology: < quasi adv. + particle n. In specific sense apparently after Russian kvazičastica (L. D. Landau 1956, in Žurnal eksp. i teor. fiziki 30 1058, the source translated in quot. 1957). Physics. A thing that has some properties of a particle but is not a particle in the traditional or full sense; spec. an excitation of a many-body system, esp. a crystal lattice, that has some of the properties of a free particle, such as momentum and position. ΘΚΠ the world > matter > physics > quantum theory > [noun] > quasiparticle quasiparticle1926 1926 Proc. Royal Soc. A. 113 444 We cannot be satisfied without the correct statistics of light quanta as quasi-particles. 1957 R. T. Beyer tr. L. D. Landau in Soviet Physics: JETP 3 921/1 The role of the gas particles in this classification is assumed by the ‘elementary excitations’ (quasi-particles), each of which possesses a definite momentum. 1968 C. 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. 1974 D. 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. 2003 tr. F. Leroy Cent. of Nobel Prizes Recipients 220 This new quantum..revealed the possibility of the existence of quasiparticle excitations carryng an exact fraction of the elemental electric charge. This entry has been updated (OED Third Edition, December 2007; most recently modified version published online March 2022). < n.1926
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