Bias in Error-Corrected Quantum Sensing
Name
PhysRevLett.128.140503.pdf
Description
Published version
Size
362.47 KB
Format
Adobe PDF
Checksum (MD5)
e28bcd40dd6ce86b4f5436914465abe2
Author(s)
Rojkov, Ivan
Layden, David
Cappellaro, Paola
Home, Jonathan
Reiter, Florentin
Date Issued
2022
Journal
Physical Review Letters
Publisher
American Physical Society (APS)
Citation
Rojkov, Ivan, Layden, David, Cappellaro, Paola, Home, Jonathan and Reiter, Florentin. 2022. "Bias in Error-Corrected Quantum Sensing." Physical Review Letters, 128 (14).
Version
Final published version
Abstract
The sensitivity afforded by quantum sensors is limited by decoherence. Quantum error correction (QEC) can enhance sensitivity by suppressing decoherence, but it has a side effect: it biases a sensor's output in realistic settings. If unaccounted for, this bias can systematically reduce a sensor's performance in experiment, and also give misleading values for the minimum detectable signal in theory. We analyze this effect in the experimentally motivated setting of continuous-time QEC, showing both how one can remedy it, and how incorrect results can arise when one does not.
MIT Department
Massachusetts Institute of Technology. Department of Nuclear Science and Engineering
Terms of Use
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/PHYSREVLETT.128.140503
