Application of Quantizers in the Projection Approach

The talk will discuss the derivation of quantum kinetic equations in quantum optics that makes it possible to efficiently account for various nonequilibrium states of the environment. Representing states using quasiprobability distributions or characteristic functions aligns well with the standard Nakajima–Zwanzig approach due to the convenient properties of the corresponding quantizers. The results obtained for well-known quantum-optical models in regimes with nonequilibrium environments will be presented, along with prospects for using this method in multimode quantum-optics problems.