Information-disturbance tradeoff for spin coherent state estimation
Abstract
Description
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.
6 pages, 3 figures; improved introduction, simplified notation, and new references. To appear on Phys. Rev. A
6 pages, 3 figures; improved introduction, simplified notation, and new references. To appear on Phys. Rev. A