Performance advantage of protective quantum measurements
arXiv:2409.12174 · doi:10.1103/PhysRevA.110.032215
Abstract
We compare the performance of protective quantum measurements to that of standard projective measurements. Performance is quantified in terms of the uncertainty in the measured expectation value. We derive an expression for the relative performance of these two types of quantum measurements and show explicitly that protective measurements can provide a significant performance advantage over standard projective measurements.
arXiv comment7 pages, 5 figures, identical to published version
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