Аннотация:Intensity
correlations
in
the
scattering
of
light
by
acoustic
phonons
or
polaritons
in
the
case
of
weak
absorption are considered.
The relationship
between
the
bunching parameter
of
the
scattered
light
and
the bunching
parameter
of
the
scattering quasiparticles
is
calculated
perturbatively
in
the
interaction
representation. The cases
of
thermal
and
coherent
statistics
of the
phonons (respectively,
polaritons)
are considered separately.
For
the
case
of
arbitrary
statistics
of
the
scattering
quasiparticles,
it
is shown that
the
bunching
parameter
for
them
can
be
measured
by
means
of
a
Brown-Twiss
experiment for light scattered into
the
anti-
Stokes
region.
Scattering
by
two uncoupled phonons is
considered
separately