General framework for estimating the ultimate precision limit in noisy quantum-enhanced metrology

NATURE PHYSICS, no. 5 (2011): 406.0-411

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The estimation of parameters characterizing dynamical processes is central to science and technology. The estimation error changes with the number N of resources employed in the experiment (which could quantify, for instance, the number of probes or the probing energy). Typically, it scales as 1/root N. Quantum strategies may improve the ...更多

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