Engineering QND measurements for continuous variable quantum information processing
classification
🪐 quant-ph
keywords
measurementsinformationquantumallowsclasscomponentscontinuousdisturbance
read the original abstract
A novel scheme to realize the whole class of quantum nondemolition (QND) measurements of a field quadrature is suggested. The setup requires linear optical components and squeezers, and allows optimal QND measurements of quadratures, which minimize the information gain versus state disturbance trade-off.
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