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Quantum correlations in measurement-based control of a mechanical oscillator

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Abstract

Quantum measurements proceed by the establishment of correlations between the system being measured, and the meter performing the measurement. We use measurement-based feedback to distill such quantum correlations resulting from the interferometric position measurement of a nanomechanical oscillator. We also identify the role of “feedback back-action” in deteriorating the efficiency of this procedure. Finally, we use feedback to control another form of such correlations – optical squeezing.

© 2016 Optical Society of America

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