Information-disturbance tradeoff for spin coherent state estimation
classification
🪐 quant-ph
keywords
statecoherentmeasurementspintradeoffamountcorrespondingderive
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We show how to quantify the optimal tradeoff between the amount of information retrieved by a quantum measurement in estimating an unknown spin coherent state and the disturbance on the state itself, and how to derive the corresponding minimum-disturbing measurement.
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