This paper surveys some recent results on the theory of quantum linear systems and
presents them within a unified framework. Quantum linear systems are a class of systems …

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 …

The purpose of this paper is to study and design direct and indirect couplings for use in
coherent feedback control of a class of linear quantum stochastic systems. A general …

A recently emerging approach to the feedback control of linear quantum systems involves
the use of a controller which itself is a quantum linear system. This approach to quantum …

The mathematical theory of quantum feedback networks has recently been developed [J.
Gough and MR James, e-print arXiv: 0804.3442 v2] for general open quantum dynamical …

We argue that it is possible in principle to reduce the uncertainty of an atomic magnetometer
by double passing a far-detuned laser field through the atomic sample as it undergoes …

The purpose of this paper is to address the problem of physical realizability for n-level
quantum systems. We provide necessary and sufficient conditions for quantum stochastic …

The purpose of this paper is to present a theoretic and numerical study of utilizing squeezing
and phase shift in coherent feedback control of linear quantum optical systems. A …

We show that it is possible to construct closed quantum systems governed by a bilinear
Hamiltonian depending on an arbitrary input signal. This is achieved by coupling the system …

We study a coherent-classical estimation scheme for a class of linear quantum systems,
where the estimator is a mixed quantum–classical system that may or may not involve …