  An effective toy model for an ideal one-dimensional nonstationary cavity is
taken to be the starting point to derive a fitting markovian master equation
for the corresponding leaky cavity. In the regime where the generation of
photons via the dynamical Casimir effect is bounded, the master equation thus
constructed allows us to investigate the effects of decoherence on the average
number of Casimir photons and their quantum fluctuations through the
second-order correlation function.
