Experimentally efficient methods for estimating the performance of quantum measurements
Author(s)
Magesan, Easwar; Cappellaro, Paola
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Efficient methods for characterizing the performance of quantum measurements are important in the experimental quantum sciences. Ideally, one requires both a physically relevant distinguishability measure between measurement operations and a well-defined experimental procedure for estimating the distinguishability measure. Here, we propose the average measurement fidelity and error between quantum measurements as distinguishability measures. We present protocols for obtaining bounds on these quantities that are both estimable using experimentally accessible quantities and scalable in the size of the quantum system. We also explain why the bounds should be valid in large generality and illustrate the method via numerical examples.
Date issued
2013-08Department
Massachusetts Institute of Technology. Department of Nuclear Science and Engineering; Massachusetts Institute of Technology. Research Laboratory of ElectronicsJournal
Physical Review A
Publisher
American Physical Society
Citation
Magesan, Easwar, and Paola Cappellaro. “Experimentally efficient methods for estimating the performance of quantum measurements.” Physical Review A 88, no. 2 (August 2013). © 2013 American Physical Society
Version: Final published version
ISSN
1050-2947
1094-1622