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Coherent coupling of a superconducting flux qubit to an electron spin ensemble in diamond

Author

Listed:
  • Xiaobo Zhu

    (NTT Basic Research Laboratories, NTT Corporation, 3-1 Morinosato-Wakamiya, Atsugi, Kanagawa 243-0198, Japan)

  • Shiro Saito

    (NTT Basic Research Laboratories, NTT Corporation, 3-1 Morinosato-Wakamiya, Atsugi, Kanagawa 243-0198, Japan)

  • Alexander Kemp

    (NTT Basic Research Laboratories, NTT Corporation, 3-1 Morinosato-Wakamiya, Atsugi, Kanagawa 243-0198, Japan)

  • Kosuke Kakuyanagi

    (NTT Basic Research Laboratories, NTT Corporation, 3-1 Morinosato-Wakamiya, Atsugi, Kanagawa 243-0198, Japan)

  • Shin-ichi Karimoto

    (NTT Basic Research Laboratories, NTT Corporation, 3-1 Morinosato-Wakamiya, Atsugi, Kanagawa 243-0198, Japan)

  • Hayato Nakano

    (NTT Basic Research Laboratories, NTT Corporation, 3-1 Morinosato-Wakamiya, Atsugi, Kanagawa 243-0198, Japan)

  • William J. Munro

    (NTT Basic Research Laboratories, NTT Corporation, 3-1 Morinosato-Wakamiya, Atsugi, Kanagawa 243-0198, Japan)

  • Yasuhiro Tokura

    (NTT Basic Research Laboratories, NTT Corporation, 3-1 Morinosato-Wakamiya, Atsugi, Kanagawa 243-0198, Japan)

  • Mark S. Everitt

    (National Institute of Informatics, 2-1-2 Hitotsubashi, Chiyoda-ku, Tokyo 101-8430, Japan)

  • Kae Nemoto

    (National Institute of Informatics, 2-1-2 Hitotsubashi, Chiyoda-ku, Tokyo 101-8430, Japan)

  • Makoto Kasu

    (NTT Basic Research Laboratories, NTT Corporation, 3-1 Morinosato-Wakamiya, Atsugi, Kanagawa 243-0198, Japan)

  • Norikazu Mizuochi

    (University of Osaka, Graduate school of Engineering Science, 1-3 Machikane-yama, Toyonaka, Osaka 560-8531, Japan
    PRESTO JST, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan)

  • Kouichi Semba

    (NTT Basic Research Laboratories, NTT Corporation, 3-1 Morinosato-Wakamiya, Atsugi, Kanagawa 243-0198, Japan)

Abstract

Quantum hybrids Hybrid quantum devices, in which a superconducting qubit is coupled to a dedicated quantum memory based on natural atomic or molecular ensembles, are promising for quantum information processing. However, it has not been clear whether the required strength of coherent quantum coupling could be achieved. Zhu et al. improve the prospects of such technology, demonstrating coherent strong coupling and exchange of a quantum of energy between a superconducting flux qubit and an ensemble of electron spins associated with nitrogen-vacancy defects in diamond.

Suggested Citation

  • Xiaobo Zhu & Shiro Saito & Alexander Kemp & Kosuke Kakuyanagi & Shin-ichi Karimoto & Hayato Nakano & William J. Munro & Yasuhiro Tokura & Mark S. Everitt & Kae Nemoto & Makoto Kasu & Norikazu Mizuochi, 2011. "Coherent coupling of a superconducting flux qubit to an electron spin ensemble in diamond," Nature, Nature, vol. 478(7368), pages 221-224, October.
    • Handle: RePEc:nat:nature:v:478:y:2011:i:7368:d:10.1038_nature10462
    DOI: 10.1038/nature10462
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