Nonclassicality of cavity field interacting with thermal reservoir

초록

The time variation of the nonclassical measure of the cavity field interacting with a thermal reservoir is examined. From the knowledge of the quasi-probability distribution function of the cavity field as a function of time, the nonclassical measure of the state is explicitly calculated in terms of the initial nonclassical measure, the decay constant, and the average number of photons in the reservoir.