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Quantum-assisted distortion-free audio signal sensing

Author

Listed:
  • Chen Zhang

    (University of Stuttgart)

  • Durga Dasari

    (University of Stuttgart)

  • Matthias Widmann

    (University of Stuttgart)

  • Jonas Meinel

    (University of Stuttgart)

  • Vadim Vorobyov

    (University of Stuttgart)

  • Polina Kapitanova

    (ITMO University)

  • Elizaveta Nenasheva

    (Ceramics Co. Ltd.)

  • Kazuo Nakamura

    (Tokyo Gas Co. Ltd.)

  • Hitoshi Sumiya

    (Sumitomo Electric Industries Ltd.)

  • Shinobu Onoda

    (National Institutes for Quantum Science and Technology)

  • Junichi Isoya

    (University of Tsukuba)

  • Jörg Wrachtrup

    (University of Stuttgart)

Abstract

Quantum sensors are known for their high sensitivity in sensing applications. However, this sensitivity often comes with severe restrictions on other parameters which are also important. Examples are that in measurements of arbitrary signals, limitation in linear dynamic range could introduce distortions in magnitude and phase of the signal. High frequency resolution is another important feature for reconstructing unknown signals. Here, we demonstrate a distortion-free quantum sensing protocol that combines a quantum phase-sensitive detection with heterodyne readout. We present theoretical and experimental investigations using nitrogen-vacancy centers in diamond, showing the capability of reconstructing audio frequency signals with an extended linear dynamic range and high frequency resolution. Melody and speech based signals are used for demonstrating the features. The methods could broaden the horizon for quantum sensors towards applications, e.g. telecommunication in challenging environment, where low-distortion measurements are required at multiple frequency bands within a limited volume.

Suggested Citation

  • Chen Zhang & Durga Dasari & Matthias Widmann & Jonas Meinel & Vadim Vorobyov & Polina Kapitanova & Elizaveta Nenasheva & Kazuo Nakamura & Hitoshi Sumiya & Shinobu Onoda & Junichi Isoya & Jörg Wrachtru, 2022. "Quantum-assisted distortion-free audio signal sensing," Nature Communications, Nature, vol. 13(1), pages 1-10, December.
    • Handle: RePEc:nat:natcom:v:13:y:2022:i:1:d:10.1038_s41467-022-32150-1
    DOI: 10.1038/s41467-022-32150-1
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    References listed on IDEAS

    as
    1. Jonas Meinel & Vadim Vorobyov & Boris Yavkin & Durga Dasari & Hitoshi Sumiya & Shinobu Onoda & Junichi Isoya & Jörg Wrachtrup, 2021. "Heterodyne sensing of microwaves with a quantum sensor," Nature Communications, Nature, vol. 12(1), pages 1-8, December.
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    5. Pengfei Wang & Zhenheng Yuan & Pu Huang & Xing Rong & Mengqi Wang & Xiangkun Xu & Changkui Duan & Chenyong Ju & Fazhan Shi & Jiangfeng Du, 2015. "High-resolution vector microwave magnetometry based on solid-state spins in diamond," Nature Communications, Nature, vol. 6(1), pages 1-5, May.
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