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Updated: Feb 13, 2026

Implementation of a Reference Interferometer for Nanodetection
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Absolute sensitivity of phase measurement in an SU(1,1) type interferometer

Wei Du, Jun Jia, J F Chen

    Optics Letters
    |March 1, 2018
    PubMed
    Summary

    Researchers achieved 3 dB greater sensitivity in phase measurement using a nonlinear SU(1,1) interferometer compared to a traditional Mach-Zehnder interferometer, demonstrating enhanced quantum sensing capabilities.

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