quasiparticle
类比粒子,准粒子,类粒子,类物质
Definitions
- 1
Physics.
- : an entity, as an exciton or phonon, that interacts with elementary particles, but does not exist as a free particle.
Examples
The push and pull between each electron and all the particles in its environment “dress” the electron so that it acts like a quasiparticle with a larger mass.
The emerging quasiparticles can be quite stable with well-defined properties like mass and charge.
“Star Trek used to love taking the names of real quasiparticles and ascribing magical properties to them,” said Douglas Natelson, a physicist at Rice University in Texas whose job involves creating actual quasiparticles with near-magical properties.
Using intuition, educated guesswork and computer simulations, condensed matter physicists have become better at figuring out which quasiparticles are theoretically possible.
The beauty of quasiparticles is that we can practically make them to order, having a vast variety of properties.