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Implementation of a Reference Interferometer for Nanodetection
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Super-resolved angular displacement estimation based upon a Sagnac interferometer and parity measurement

Jian-Dong Zhang, Zi-Jing Zhang, Long-Zhu Cen

    Optics Express
    |March 4, 2020
    PubMed
    Summary

    This study demonstrates super-resolved angular displacement estimation using a Sagnac interferometer. The novel protocol achieves enhanced precision in quantum information processing, surpassing classical limits.

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