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arXiv · quant-ph/0006013

Information, disturbance and Hamiltonian quantum feedback control

Andrew C. Doherty·Kurt Jacobs·Gerard Jungman
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Abstract

We consider separating the problem of designing Hamiltonian quantum feedback control algorithms into a measurement (estimation) strategy and a feedback (control) strategy, and consider optimizing desirable properties of each under the minimal constraint that the available strength of both is limited. This motivates concepts of information extraction and disturbance which are distinct from those usually considered in quantum information theory. Using these concepts we identify an information trade-off in quantum feedback control.

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Andrew C. Doherty, Kurt Jacobs, Gerard Jungman. 2000-06-03. Information, disturbance and Hamiltonian quantum feedback control. https://doi.org/10.1103/physreva.63.062306

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