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Polariton
In
physics
,
polaritons
are
quasiparticles
resulting from strong coupling of
electromagnetic waves
with an electric or magnetic
dipole
-carrying excitation. They are an expression of the common
quantum
phenomenon known as
level repulsion
, also known as the
avoided crossing
principle. Polaritons describe the crossing of the
dispersion
of light with any interacting
resonance
.
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