Coherent control engineering for state estimation in quantum linear systems

The project aims to develop new methodologies for designing coherent controllers to facilitate optimal estimation in systems incorporating quantum sensors such as optomechanical and atom-interference sensors. Hybrid coherent-classical estimators obtained by combining classical optimal estimators such as the Kalman filter with coherent feedback controllers aim to address fundamental accuracy limitations due to quantum noise. The goal of the new controller design methods is to enable greatly improved estimation performance along with the ability to implement coherent controllers using emerging technologies such as optical or superconducting microwave circuits. Applications include mineral exploration, environmental sensing and navigation.