Experimentally efficient methods for estimating the performance of quantum measurements
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Magesan_Experimentally-efficient.pdf
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Author(s)
Magesan, Easwar
Cappellaro, Paola
Date Issued
August 2013
Journal
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
Abstract
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.
MIT Department
Massachusetts Institute of Technology. Department of Nuclear Science and Engineering
Massachusetts Institute of Technology. Research Laboratory of Electronics
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1103/PhysRevA.88.022127
