  The electromagnetic field is canonically quantized in the presence of a
linear, dispersive and dissipative medium that is in uniform motion.
Specifically we calculate the change in the normal modes of the coupled
matter-field system and find a Hamiltonian that contains negative energy normal
modes. We interpret these modes as the origin of phenomena such as quantum
friction, and find that a detector initially in its ground state and coupled to
the electromagnetic field in the vicinity of, or within a uniformly moving
medium has a non-zero probability of excitation at T=0K.
