The development of estimation and control theories for quantum systems is a fundamental
task for practical quantum technology. This vision article presents a brief introduction to …

The control of individual quantum systems is now a reality in a variety of physical settings.
Feedback control is an important class of control methods because of its ability to reduce the …

It was shown [New J. Phys. 17, 103037 (2015) NJOPFM 1367-2630 10.1088/1367-
2630/17/10/103037] that large and robust entanglement between two different mechanical …

We investigate a hybrid electro-optomechanical system that allows us to realize controllable
strong Kerr nonlinearities even in the weak-coupling regime. We show that when the …

Coherent feedback stabilizes a system toward a target state without the need of a
measurement, thus avoiding the quantum backaction inherent to measurements. Here, we …

We model the cooling of open optical and optomechanical resonators via optical feedback in
the linear quadratic Gaussian setting of stochastic control theory. We show that coherent …

Feedback is a powerful and ubiquitous technique both in classical and quantum system
control. Its standard implementation relies on measuring the state of a system, processing …

Rapid state control of quantum systems is significant in reducing the influence of relaxation
or decoherence caused by the environment and enhancing the capability in dealing with …

The purpose of this paper is to provide a brief review of some recent developments in
quantum feedback networks and control. A quantum feedback network (QFN) is an …

In this paper, we present a coherent feedback control scheme for non-Markovian bosonic
systems, in which an engineered quantum control field is introduced to couple both the …