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A Direct Coupling Coherent Quantum Observer for a Qubit, including Observer Measurements

Petersen, Ian; Huntington, Elanor


This paper proposes a direct coupling coherent quantum observer for a quantum plant which consists of a two level quantum system. The quantum observer, which is a quantum harmonic oscillator, includes homodyne detection measurements. It is shown that the observer can be designed so that it does not affect the quantum variable of interest in the quantum plant and that measured output converges in a given sense to the plant variable of interest. Also, the plant variable of interest-observer...[Show more]

CollectionsANU Research Publications
Date published: 2017
Type: Journal article
Source: IFAC-PapersOnLine
DOI: 10.1016/j.ifacol.2017.08.761
Access Rights: Open Access


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