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Quantization (physics)
In
physics
,
quantization
is the process of transition from a classical understanding of physical phenomena to a newer understanding known as "
quantum mechanics
". It is a procedure for constructing a
quantum field theory
starting from a classical
field theory
. This is a generalization of the procedure for building
quantum mechanics
from
classical mechanics
. One also speaks of
field quantization
, as in the "quantization of the
electromagnetic field
", where one refers to
photons
as field "
quanta
" (for instance as
light quanta
). This procedure is basic to theories of
particle physics
,
nuclear physics
,
condensed matter physics
, and
quantum optics
.
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