Variational approach to controlling dynamics of open quantum systems

Abstract

Control of quantum dynamics with high fidelity in the presence of noise is one of the requirements of quantum technologies. Here we develop a variational control approach for open quantum systems which is completely based on dynamics (process matrix) and is independent of initial conditions. We obtain a set of equations for optimal control of an open quantum system. We solve these equations iteratively for the particular case of simulating a dynamics in a preset time.