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As a quantum analog of Cherenkov radiation, an inertial photon detectormoving through a medium with constant refractive index $n$ may perceive theelectromagnetic quantum fluctuations as real photons if its velocity $v$exceeds the medium speed of light $c/n$. For dispersive Hopfield type media, wefind this Ginzburg effect to extend to much lower $v$ because the phasevelocity of light is very small near the medium resonance. In this regime,however, dissipation effects become important. Via an extended Hopfield model,we present a consistent treatment of quantum fluctuations in dispersive anddissipative media and derive the Ginzburg effect in such systems. Finally, wepropose an experimental test.

Ginzburg effect in a dielectric medium with dispersion and dissipation