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Journals and Conferences
We compare quantum and classical feedback control of linear systems, investigating the effect of back-action noise on control performance. One consequence is the existence of an optimal measurement for fixed system-environment coupling.
The purpose of this paper is to describe some recent results concerning optimal feedback control of quantum systems using risk-sensitive performance criteria. We employ quantum stochastic models to describe an important class of quantum systems and define a risk-sensitive criterion for these models. A suitable information state is introduced to solve the… (More)
We show how a superconducting coplanar microwave cavity can be used as a quantum limited displacement transducer for a nanomechanical resonator by demonstrating that nanomechanical squeezing can be detected in the cavity field.