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High-resolution spectroscopy of single nuclear spins via sequential weak measurements

Author

Listed:
  • Matthias Pfender

    (University of Stuttgart)

  • Ping Wang

    (Beijing Computational Science Research Center
    The Chinese University of Hong Kong)

  • Hitoshi Sumiya

    (Sumitomo Electric Industries Ltd.)

  • Shinobu Onoda

    (National Institutes for Quantum and Radiological Science and Technology)

  • Wen Yang

    (Beijing Computational Science Research Center)

  • Durga Bhaktavatsala Rao Dasari

    (University of Stuttgart
    Max Planck Institute for Solid State Research)

  • Philipp Neumann

    (University of Stuttgart)

  • Xin-Yu Pan

    (Chinese Academy of Sciences)

  • Junichi Isoya

    (University of Tsukuba)

  • Ren-Bao Liu

    (The Chinese University of Hong Kong)

  • Jörg Wrachtrup

    (University of Stuttgart
    Max Planck Institute for Solid State Research)

Abstract

Nuclear magnetic resonance (NMR) of single spins have recently been detected by quantum sensors. However, the spectral resolution has been limited by the sensor’s relaxation to a few kHz at room temperature. This can be improved by using quantum memories, at the expense of sensitivity. In contrast, classical signals can be measured with exceptional spectral resolution by using continuous measurement techniques, without compromising sensitivity. When applied to single-spin NMR, it is critical to overcome the impact of back action inherent of quantum measurement. Here we report sequential weak measurements on a single 13C nuclear spin. The back-action causes the spin to undergo a quantum dynamics phase transition from coherent trapping to coherent oscillation. Single-spin NMR at room-temperature with a spectral resolution of 3.8 Hz is achieved. These results enable the use of measurement-correlation schemes for the detection of very weakly coupled single spins.

Suggested Citation

  • Matthias Pfender & Ping Wang & Hitoshi Sumiya & Shinobu Onoda & Wen Yang & Durga Bhaktavatsala Rao Dasari & Philipp Neumann & Xin-Yu Pan & Junichi Isoya & Ren-Bao Liu & Jörg Wrachtrup, 2019. "High-resolution spectroscopy of single nuclear spins via sequential weak measurements," Nature Communications, Nature, vol. 10(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-08544-z
    DOI: 10.1038/s41467-019-08544-z
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    Cited by:

    1. Jonas Meinel & Vadim Vorobyov & Ping Wang & Boris Yavkin & Mathias Pfender & Hitoshi Sumiya & Shinobu Onoda & Junichi Isoya & Ren-Bao Liu & J. Wrachtrup, 2022. "Quantum nonlinear spectroscopy of single nuclear spins," Nature Communications, Nature, vol. 13(1), pages 1-9, December.
    2. Durga Bhaktavatsala Rao Dasari & Sen Yang & Arnab Chakrabarti & Amit Finkler & Gershon Kurizki & Jörg Wrachtrup, 2022. "Anti-Zeno purification of spin baths by quantum probe measurements," Nature Communications, Nature, vol. 13(1), pages 1-10, December.
    3. K. S. Cujia & K. Herb & J. Zopes & J. M. Abendroth & C. L. Degen, 2022. "Parallel detection and spatial mapping of large nuclear spin clusters," Nature Communications, Nature, vol. 13(1), pages 1-10, December.

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