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 (kwā′zī-pär′tĭ-kəl, kwä′zē-)
Any of various discrete physical phenomena, such as phonons, that can be modeled as particles and can be induced by the interaction of conventional particles.
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Noun1.quasiparticle - a quantum of energy (in a crystal lattice or other system) that has position and momentum and can in some respects be regarded as a particle
quantum - (physics) the smallest discrete quantity of some physical property that a system can possess (according to quantum theory)
References in periodicals archive ?
Janssen's quantum material research focuses on the formation and disappearance of quasiparticles: microparticle dressings that behave in their interactions like individual particles.
In previous experiments at the ALS, Hasan's team had revealed the existence of a type of massless quasiparticles known as Weyl fermions, which had only been known to exist in theory for about 85 years.
These quasiparticles, however, have no physical existence apart from the medium, but their correspondence to border conditions and behaviors of the material make them an extremely useful convention.
According to (45), the spectrum of excitations of quasiparticles of an imperfect gas is characterized by a finite energy gap which in the long-wavelength limit is equal to [[omega].sub.p].
The quasiparticles in the AF phase spin waves and in the SC phase they are "triplons," dimers consisting of two neighboring spins which are aligned parallel to each other.
Well-known examples include the single-particle Green function, which describes the propagation of individual quasiparticles, that is, injected electrons or holes, and the dynamic charge susceptibility or linear density-response function, which gives information about plasmons, excitons, and other charge-neutral optical excitations [3].
When this happens, we can eject anyons as "quasiparticles" from the correlated states of many electrons in the sheet.
It's here, down at the limits of physics, that solid materials give rise to so-called quasiparticles, whose unusual behavior gives them the potential to serve as the key components of quantum computers.
This tradition has now been expanded from familiar particles like electrons and protons to quasiparticles, which act like particles but aren't.
Physically, quasiparticles can be created in the CPW resonator when it absorbs the incident radiation energy.