单词	quasiparticle
释义	quasiparticle /ˌkweɪzʌɪˈpaːtɪk(ə)l / /ˌkweɪsʌɪˈpaːtɪk(ə)l/ /ˈkwɑːzi/ noun Physics A quantum of energy in a crystal lattice or other system of bodies which has momentum and position and can in some respects be regarded as a particle.Remember that we also know that in many body systems there are quasiparticles which act very much like normal particles.... The effective masses of the electrons are therefore increased - by a few percent in simple metals and by factors of up to 1000 in ‘heavy fermion ‘systems - but the quasiparticles still carry the same charge and spin as free electrons.’ One point which Wen is particularly excited about is that fermions can appear as quasiparticles in local bosonic lattice systems.
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