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Additional
phonon
English Wikipedia - The Free Encyclopedia
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Phonon
In
physics
, a
phonon
is a
collective excitation
in a periodic,
elastic
arrangement of
atoms
or
molecules
in
condensed matter
, like
solids
and some
liquids
. Often designated a
quasiparticle
, it represents an
excited state
in the
quantum mechanical
quantization of the
modes of vibrations
of elastic structures of interacting particles.
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