mathematical computation of quantum optical control systems

Some models of linear control system schemas are developed here for quantum linear systems. the most important linear devices in quantum optics are introduced with their differential equations. these linear quantum systems are zero-order and first-order transfer functions with one pole and one zero. we mathematical compute transfer function of different interconnections by using zero-order and first-order systems. for instance, by designing series and feedback interconnection, we will obtain higher-order quantum linear systems. also, we will analyze a closed-loop feedback of a first-order linear quantum system containing a gain in feedback path.