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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 ?
Instead, our current knowledge of materials is derived from a simplified perspective where electrons in solids are described in terms of special non-interacting particles, called quasiparticles, that move in the effective field created by charged entities called ions and electrons.
I will take this unique opportunity to test birth, life and death scenarii of Landau quasiparticles and observe the emergence of many-body physics.
Proof of that comes on Page 22 in Andrew Grant's explainer on quasiparticles, which are essentially fictional particles.
Defining magnons as quasiparticles that describe quanta of spin waves in magneto-ordered media, Safonov says the concept allows perturbations of the magnetic material to be the represented as an evolution of magnon gas excited to some definite level or, classically, as an evolution of spin waves.
Brillouin scattering is an inelastic collision that may form or annihilate quasiparticles such as phonons, plasmons, and magnons.
y] outside the barrier are expressed in terms of the angle of incidence, p, of the quasiparticles Dirac fermions as:
1 Nonlinear Terahertz Studies of Ultrafast Quasiparticles Dynamics in Semiconductors (Michael Woerner and Thomas Elsaesser).
Quasiparticles excitations that behave collectively like particles are central to energy applications but can be difficult to detect.
Over the last 75 years, physicists have been making sense of incomprehensible things by identifying and exploiting more than a dozen quasiparticles (see partial list, Page 24).
11, 13 and 14), taking into consideration the two cases for parallel and antiparallel spins of quasiparticles in the two leads.
Ezawa, Thermal and Tunneling Pair Creation of Quasiparticles in Quantum Hall Systems, Phys.
Objective: Reversible coupling of excitons and photons in a microcavity leads to the formation of mixed light-matter quasiparticles, called cavity-polaritons.