quasiparticle


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qua·si·par·ti·cle

 (kwā′zī-pär′tĭ-kəl, kwä′zē-)
n.
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.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
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)
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
A simple example of Landau's proposal is an electron quasiparticle, the most common quasiparticle, according to Cundiff.
Other specific mechanisms of the quasiparticle interaction, such as those caused by structural or kinematic anisotropy of the system, canal so be relevant [32, 33].
Two-dimensional graphene monolayer and bilayer exhibit fascinating electronic [1-4] and optical properties [5, 6] due to zero energy gap and relativistic-like nature of quasiparticle dispersion close to the Fermi-level.
Although the interaction between constituents in the quark-gluon system at temperature [T.sub.c] < T < [3T.sub.c] is not weak enough, the hard thermal loop (HTL) perturbation theory motivates and justifies a picture of weakly interacting quasiparticle at this region of temperature.
Freitaget al., "From one electron to one hole: Quasiparticle counting in graphene quantum dots determined by electrochemical and plasma etching," Small, vol.
The main uses of QFT is in relativistic physics, quasiparticle motions in condensed matter and in the "Wick rotated" form which converts temporal evolution to a high temperature expansion of the thermodynamic potentials.
Robert Brady in "The Irrotational of of Compressible Inviscid Fluid" outlines a comprehensive physical mapping between quantum mechanical theory and fluid dynamics in which he not only provides an analog for gravity but also introduces the concept of a relativistic quasiparticle called a 'sonon' which exhibits spin G symmetry (Brady 2013).
We will not address very complicated methods "beyond the mean field" such as the Quasiparticle Random Phase Approximation (QRP A) or the Generator-Coordinate-Method (GCM) methods which are unsuitable in practice for large scale calculations.
But he says the experiment gives physicists a chance to explore a so-called quasiparticle that, at least mathematically, behaves just as Dirac predicted an actual monopole would 83 years ago.
For a d-wave superconductor, in a magnetic field, the quasiparticle excitation spectrum experiences a Doppler shift due to the supercurrent flow circulating around the vortex cores, and in a nodal superconductor, this Doppler shift will be comparable to the gap near the nodes.