Coherent-Classical Estimation for Quantum Linear Systems

Abstract

This paper introduces a problem of coherent-classical estimation for a class of linear quantum systems. In this problem, the estimator is a mixed quantum-classical system which produces a classical estimate of a system variable. The coherent-classical estimator may also involve coherent feedback. An example involving optical squeezers is given to illustrate the efficacy of this idea.

A version of this paper will appear in the Proceedings of the 2013 Australian Control Conference