  This work is a continuation of our papers from the last couple of years on
the Casimir friction for a pair of particles at low relative velocity. The new
element in the present analysis is to allow the media to be dense. Then the
situation becomes more complex due to induced dipolar correlations, both within
the two planes, and between the planes. We show that the structure of the
problem can be simplified by regarding the two plates to be a generalized
version of a pair of particles. The force is predicted to be very small, far
beyond what is practically measurable.
