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Research on Quantum Memory using Superconducting Artificial Atoms

Research Project

Project/Area Number 22241025
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Research Field Nanostructural science
Research InstitutionNational Institute of Informatics (2011-2012)
NTT Basic Research Laboratories (2010)

Principal Investigator

SEMBA Koichi  国立情報学研究所, 量子情報国際研究センター, 特任教授 (50393773)

Co-Investigator(Kenkyū-buntansha) NEMOTO Kae  国立情報学研究所, 情報学プリンシプル研究系, 教授 (80370104)
SAITO Shiro  日本電信電話 株式会社 NTT物性科学基礎研究所, 量子電子物性研究部, 主任研究員 (90393777)
KAKUYANAGI Kousuke  日本電信電話 株式会社 NTT物性科学基礎研究所, 量子電子物性研究部, 研究主任 (40417093)
NAKANO Hayato  日本電信電話 株式会社 NTT物性科学基礎研究所, 量子電子物性研究部, 主任研究員 (60393774)
ZHU Xiaobo  日本電信電話 株式会社 NTT物性科学基礎研究所, 量子電子物性研究部, リサーチアソシエイト (70536226)
KARIMOTO Shinichi  日本電信電話 株式会社 NTT物性科学基礎研究所, 量子電子物性研究部, 研究主任 (80393734)
KASU Makoto  佐賀大学, 工学(系)研究科(研究院), 教授 (50393731)
Co-Investigator(Renkei-kenkyūsha) MIZUOCHI Norikazu  大阪大学, 基礎工学研究科, 准教授 (00323311)
Project Period (FY) 2010 – 2012
Project Status Completed (Fiscal Year 2012)
Budget Amount *help
¥43,810,000 (Direct Cost: ¥33,700,000、Indirect Cost: ¥10,110,000)
Fiscal Year 2012: ¥14,170,000 (Direct Cost: ¥10,900,000、Indirect Cost: ¥3,270,000)
Fiscal Year 2011: ¥16,640,000 (Direct Cost: ¥12,800,000、Indirect Cost: ¥3,840,000)
Fiscal Year 2010: ¥13,000,000 (Direct Cost: ¥10,000,000、Indirect Cost: ¥3,000,000)
Keywords人工原子 / 量子メモリー / ダイヤモンド / 微小共振器 / メゾスコピック系 / 超精密計測 / 超伝導 / NVセンター / エンタングルメント / 量子非破壊測定 / 量子通信 / (超)強結合 / cavity-QED(共振器量子電磁力学) / 光の強結合領域 / 擬確率分布関数
Research Abstract

We have demonstrated strong coupling between a solid-state quantum processing unit (a superconducting artificial atom : a flux-qubit) and a dedicated quantum memory (nitrogen-vacancy (NV) centers in diamond). These results indicate that quantum information manipulated in flux qubits can be stored to and retrieved from an ensemble of NV centers. A quantum memory is an essential component for quantum communication and information processing. Our work demonstrated that diamond is a promising candidate for a future quantum memory. This is a significant step forward in the development of a quantum computer and additionally to an interface between the microwave and optical worlds. This result also demonstrated generation of entanglement between two distinct macroscopic matter i.e., the spin state of a few tens of million (attomol) NV centers and the persistent current circulating in a micro-meter sized electronic circuit, a flux-qubit. We have analysed the dynamics of the NV center ensemble and a single NV center strongly coupled with the superconducting qubit. We also investigated mathematical tools to represent these quantum states with a generalization of Wigner function as well as other quasi-distribution functions. This physical system can be applied to construct novel quantum information devices, such as memory and interface. We investigated several possibilities and showed advantages of such devices in quantum information network

Report

(5 results)
  • 2012 Annual Research Report   Final Research Report ( PDF )
  • 2011 Annual Research Report
  • 2010 Annual Research Report
  • Products Report
  • Research Products

    (118 results)

All 2013 2012 2011 2010 Other

All Journal Article (24 results) (of which Peer Reviewed: 22 results) Presentation (66 results) (of which Invited: 22 results) Remarks (25 results) Patent(Industrial Property Rights) (3 results)

  • [Journal Article] Hybrid-systems approach to fault-tolerant quantum communication2013

    • Author(s)
      A. M. Stephens, J. Huang, K.Nemoto, and W. J. Munro
    • Journal Title

      Phys. Rev

      Volume: A87 Pages: 52333-52333

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] "Experimental analysis of the measurement strength dependence of superconducting qubit readout using a Josephson bifurcation readout method"2013

    • Author(s)
      K Kakuyanagi, S Kagei, R Koibuchi, S Saito, A Lupascu, K Semba and H Nakano
    • Journal Title

      New J. Phys

      Volume: 15 Pages: 43028-43028

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] Hybrid-systems approach to fault-tolerant quantum communication2013

    • Author(s)
      Ashley M. Stephens, Jingjing Huang, Kae Nemoto, and W. J. Munro
    • Journal Title

      Physical Review A

      Volume: 未定

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Experimental analysis of the measurement strength dependence of superconducting qubit readout using a Josephson bifurcation readout method2013

    • Author(s)
      K Kakuyanagi, S Kagei, R Koibuchi, S Saito, A Lupascu, K Semba, H Nakano
    • Journal Title

      New Journal of Physics

      Volume: 15 Issue: 4 Pages: 43028-43028

    • DOI

      10.1088/1367-2630/15/4/043028

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Coherent growth of superconducting TiN thin films by plasma enhanced molecular beam epitaxy2012

    • Author(s)
      Y. Krockenberger, S. Karimoto, H. Yamamoto, and K. Semba
    • Journal Title

      J. Appl. Phys

      Volume: 112

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] Towards a complete and continuous Wigner function for an ensemble of spins or qubits2012

    • Author(s)
      D. Harland, M. J. Everitt, K. Nemoto, T. Tilma, and T. P. Spiller
    • Journal Title

      Physical Review A

      Volume: Volume 86 Pages: 62117-62117

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] SU(N)-symmetric quasi-probability distribution functions2012

    • Author(s)
      T. Tilma and K. Nemoto
    • Journal Title

      Journal of Physics A : Mathematical and Theoretical

      Volume: Volume 45 Pages: 15302-15302

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] 超伝導量子ビットとスピン集団のコヒーレント結合 (招待執筆)2012

    • Author(s)
      齊藤 志郎,X. Zhu,W.J.Munro,仙場 浩一
    • Journal Title

      NTT技術ジャーナル

      Volume: 6月号 Pages: 13-17

    • URL

      http://www.ntt.co.jp/journal/1206/files/jn201206013.pdf

    • Related Report
      2012 Final Research Report
  • [Journal Article] 「注目されるハイブリッド量子系 ― 超伝導キュービットとダイヤモンドのNV 中心―」2012

    • Author(s)
      仙場 浩一
    • Journal Title

      パリティ

      Volume: Vol.28 Pages: 11-13

    • Related Report
      2012 Final Research Report
  • [Journal Article] Coherent growth of superconducting TiN thin films by plasma enhanced molecular beam epitaxy2012

    • Author(s)
      Yoshiharu Krockenberger, Shin-ichi Karimoto, Hideki Yamamoto, and Kouich Semba
    • Journal Title

      Journal of Applied Physics

      Volume: 112 Issue: 8

    • DOI

      10.1063/1.4759019

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] SU(N)-symmetric quasi-probability distribution functions2012

    • Author(s)
      Todd Tilma and Kae Nemoto
    • Journal Title

      Journal of Physics A: Mathematical and Theoretical

      Volume: 45 Issue: 1 Pages: 15302-15302

    • DOI

      10.1088/1751-8113/45/1/015302

    • Related Report
      2012 Annual Research Report 2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Towards a complete and continuous Wigner function for an ensemble of spins or qubits2012

    • Author(s)
      Derek Harland, M. J. Everitt, Kae Nemoto, T. Tilma, and T. P. Spiller
    • Journal Title

      Physical Review A

      Volume: 86 Issue: 6

    • DOI

      10.1103/physreva.86.062117

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Semba:"Coherent coupling of a superconducting flux qubit to an electron spin ensemble in diamond"2011

    • Author(s)
      X. Zhu, S. Saito, A. Kemp, K. Kakuyanagi, S. Karimoto, H. Nakano, W. J. Munro, Y. Tokura, M. S. Everitt, K. Nemoto, M. Kasu, N. Mizuochi, and K. Semba
    • Journal Title

      Nature

      Volume: Volume 478 Pages: 221-224

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] Superconducting qubit as a quantum transformer routing entanglement between a microscopic quantum memory and a macroscopic resonator2011

    • Author(s)
      A. Kemp, S. Saito, W. J. Munro, K. Nemoto, and K. Semba
    • Journal Title

      Physical Review B

      Volume: 84 Pages: 104505-104505

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] Ideal quantum nondemolition measurement of a flux qubit at variable bias, Phys2011

    • Author(s)
      Ying-Dan Wang, X. Zhu, and C. Bruder
    • Journal Title

      Rev

      Volume: B83 Pages: 134504-134504

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] Ideal quantum nondemolition measurement of a flux qubit at variable bias2011

    • Author(s)
      Ying-Dan Wang, Xiaobo Zhu, and Christoph Bruder
    • Journal Title

      Phys. Rev. B

      Volume: 83 Issue: 13

    • DOI

      10.1103/physrevb.83.134504

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Superconducting qubit as a quantum transformer routing entanglement between a microscopic quantum memory and macroscopic resonator2011

    • Author(s)
      Alexander Kemp, Shiro Saito, William J. Munro, Kae Nemoto, Kouichi Semba
    • Journal Title

      Phys. Rev. B

      Volume: 84 Issue: 10

    • DOI

      10.1103/physrevb.84.104505

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Coherent coupling of a superconducting flux qubit to an electron spin ensemble in diamond2011

    • Author(s)
      Xiaobo Zhu, Shiro Saito, Alexander Kemp, Kosuke Kakuyanagi, Shin-ichi Karimoto, Hayato Nakano, William J.Munro, Tasuhiro Tokura, Mark S.Everitt, Kae Nemoto, Makoto Kasu, Norikazu Mizuochi, Kouichi Semba
    • Journal Title

      Nature

      Volume: 478(7368) Issue: 7368 Pages: 221-224

    • DOI

      10.1038/nature10462

    • Related Report
      2011 Annual Research Report Products Report
    • Peer Reviewed
  • [Journal Article] Quantum Zeno effect with a superconducting qubit2010

    • Author(s)
      Y. Matsuzaki, S. Saito, K. Kakuyanagi, and K. Semba
    • Journal Title

      Physical Review

      Volume: B82 Pages: 180518-180518

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] Generation of Non-Classical Microwave Photon States in an Inductor-Capacitor Resonator Coupled to a Superconducting Flux Qubit2010

    • Author(s)
      K. Kakuyanagi, S. Kagei, S. Saito, H. Nakano, and K. Semba
    • Journal Title

      Appl. Phys. Express

      Volume: 3 Pages: 103101-103101

    • NAID

      10027441335

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] Coherent operation of a gap-tunable flux qubit, Appl2010

    • Author(s)
      X. Zhu, A. Kemp, S. Saito, and K. Semba
    • Journal Title

      Phys. Lett

      Volume: 97 Pages: 102503-102503

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] Coherent Operation of a Gap-tunable Flux gubit2010

    • Author(s)
      Xiaobo Zhu, Alexander Kemp, Shiro Saito, Kouichi Semba
    • Journal Title

      Appl.Phys.Lett.

      Volume: 97 Pages: 102503-102503

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Quantum Zeno effect with a superconducting Qubit2010

    • Author(s)
      Yuichiro Matsuzaki, Shiro Saito, Kosuke Kakuyanagi, Kouichi Semba
    • Journal Title

      Phys.Rev.B

      Volume: 82

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Generation of Non-Classical Microwave Photon States in an Inductor-Capacitor Resonator Coupled to a Superconducting Flux Qubit2010

    • Author(s)
      Kosuke Kakuyanagi, Seiichiro Kagei, Shiro Saito, Hayato Nakano, Kouichi Semba
    • Journal Title

      Appl.Phys.Express

      Volume: 3 Pages: 103101-103101

    • NAID

      10027441335

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Presentation] 超伝導キュービット・ダイヤモンドNV センタハイブリッド量子系2013

    • Author(s)
      仙場浩一
    • Organizer
      第60回応用物理学会春季学術講演会、薄膜・表面 分科内招待講演 (招待講演)
    • Place of Presentation
      神奈川工科大学
    • Year and Date
      2013-03-27
    • Related Report
      2012 Final Research Report
  • [Presentation] Josephson circuit QED and hybrid quantum systems2013

    • Author(s)
      Kouichi Semba
    • Organizer
      Interdisciplinary Workshop on Quantum Device ~through Mathematical Structure, National Institute of Informatics (Invited talk)
    • Place of Presentation
      Chiyoda-ku Tokyo, Japan
    • Year and Date
      2013-01-15
    • Related Report
      2012 Final Research Report
  • [Presentation] Integrated quantum information technology2013

    • Author(s)
      Kae Nemoto
    • Organizer
      JFLI meeting on quantum information and computation
    • Place of Presentation
      Paris, France
    • Related Report
      2012 Annual Research Report 2012 Final Research Report
  • [Presentation] Stephens, Jingjing Huang, and William Munro "Quantum communication using a resonator-ensemble interaction [ID:96] AQIS'122012

    • Author(s)
      Kae Nemoto
    • Organizer
      12th Asian Quantum Information Science Conference
    • Place of Presentation
      Suzhou, China
    • Year and Date
      2012-08-24
    • Related Report
      2012 Final Research Report
  • [Presentation] Coherent Coupling of a Superconducting Flux Qubit to an Electron Spin Ensemble in Diamond, Gordon Research Conference2012

    • Author(s)
      Kouichi Semba
    • Organizer
      Quantum Science, Stonehill College(Invited talk)
    • Place of Presentation
      Easton, MA, USA
    • Year and Date
      2012-08-13
    • Related Report
      2012 Final Research Report
  • [Presentation] ``Coupling a superconducting flux qubit to an NV ensemble: A hybrid system's approach for quantum media conversion,'' QCMC20122012

    • Author(s)
      W. J. Munro, S. Saito, X. Zhu, Y. Matsuzaki, Kae Nemoto, T. Shimooka, N. Mizuochi, and K. Semba
    • Organizer
      11th International Conference on Quantum Communication, Measurement and Computing (Hot Topic Talk)
    • Place of Presentation
      Vienna, Austria
    • Year and Date
      2012-07-30
    • Related Report
      2012 Final Research Report
  • [Presentation] Josephson circuit QED and hybrid quantum systems2012

    • Author(s)
      Kouichi Semba
    • Organizer
      International Workshop on Spectral analysis of noncommutative harmonic oscillators and quantum devices, Institute of Mathematics for Industry, Faculty of Mathematics (Invited talk)
    • Place of Presentation
      Kyushu University, Fukuoka, Japan
    • Related Report
      2012 Final Research Report
  • [Presentation] "1. Superconductivity and Josephson circuit QED" "2. Hybrid Quantum Systems"2012

    • Author(s)
      Kouichi Semba
    • Organizer
      The 25th Workshop on Nanoscale and Mesoscopic Systems :Exotic Quantum States in Circuit QED Systems, Hogil Kim Memorial Building (Invited talk)
    • Place of Presentation
      Pohang, Korea
    • Related Report
      2012 Final Research Report
  • [Presentation] “1. Superconductivity and Josephson circuit QED”, “2. Hybrid Quantum Systems”.2012

    • Author(s)
      Kouichi Semba
    • Organizer
      The 25th Workshop on Nanoscale and Mesoscopic Systems : Exotic Quantum States in Circuit QED Systems
    • Place of Presentation
      (Hogil Kim Memorial Building, POSTECH, Pohang, Korea
    • Related Report
      2012 Annual Research Report
    • Invited
  • [Presentation] Josephson circuit QED and hybrid quantum systems2012

    • Author(s)
      Kouichi Semba
    • Organizer
      International Workshop on Spectral analysis of non-commutative harmonic oscillators and quantum devices
    • Place of Presentation
      Institute of Mathematics for Industry, Faculty of Mathematics, Kyushu University, Fukuoka, Japan
    • Related Report
      2012 Annual Research Report
    • Invited
  • [Presentation] Quantum communication using a resonator-ensemble interaction [ID:96]2012

    • Author(s)
      Kae Nemoto, Ashley Stephens, Jingjing Huang, and William Munro
    • Organizer
      AQIS'12, 12th Asian Quantum Information Science Conference
    • Place of Presentation
      Suzhou, China
    • Related Report
      2012 Annual Research Report
  • [Presentation] Coupling a superconducting flux qubit to an NV ensemble: A hybrid system's approach for quantum media conversion2012

    • Author(s)
      W. J. Munro, S. Saito, X. Zhu, Y. Matsuzaki, Kae Nemoto, T. Shimooka, N. Mizuochi, and K. Semba
    • Organizer
      QCMC2012, 11th International Conference on Quantum Communication, Measurement and Computing
    • Place of Presentation
      Vienna, Austria
    • Related Report
      2012 Annual Research Report
  • [Presentation] ``Hybrid Quantum Devices2011

    • Author(s)
      Mark Everitt
    • Organizer
      NII Shonan Meeting on Hybrid Quantum Devices, Shonan Village, Japan invited talk
    • Place of Presentation
      NII湘南会議, 湘南国際村センター
    • Year and Date
      2011-11-08
    • Related Report
      2012 Final Research Report
  • [Presentation] ``A scalable NV-Diamond quantum computer,''2011

    • Author(s)
      Simon Devitt
    • Organizer
      NII Shonan Meeting on Hybrid Quantum Devices, Shonan Village, Japan (invited talk)
    • Place of Presentation
      NII湘南会議, 湘南国際村センター
    • Year and Date
      2011-11-07
    • Related Report
      2012 Final Research Report
  • [Presentation] Observation of sigma _x coupling signal in a gap-tunable flux2011

    • Author(s)
      Xiaobo Zhu
    • Organizer
      APS March meeting
    • Place of Presentation
      Dallas.USA
    • Year and Date
      2011-03-22
    • Related Report
      2010 Annual Research Report
  • [Presentation] Energy Flow and Information Flow in Qubit Measurement Process2011

    • Author(s)
      Hayato Nakano
    • Organizer
      International Conference in Quantum Bio-Informatic Center
    • Place of Presentation
      千葉・野田
    • Year and Date
      2011-03-11
    • Related Report
      2010 Annual Research Report
  • [Presentation] Entanglement between Macroscopic Resonator and Microscopic Two Level System through a Flux Qubit2011

    • Author(s)
      Shiro Saito
    • Organizer
      DMQS2010
    • Place of Presentation
      東京大学
    • Year and Date
      2011-02-14
    • Related Report
      2010 Annual Research Report
  • [Presentation] Time-evolution during Superconducting Measurement Process2011

    • Author(s)
      Hayato Nakano
    • Organizer
      nanoPHYS'11
    • Place of Presentation
      東京
    • Year and Date
      2011-01-26
    • Related Report
      2010 Annual Research Report
  • [Presentation] SQUIDをプローブとする超伝導量子ビットの状態測定を時間発展過程として理解する2010

    • Author(s)
      中ノ勇人
    • Organizer
      京大基研研究会「量子科学における双対性とスケール」
    • Place of Presentation
      京都大学基礎物理研究所
    • Year and Date
      2010-11-05
    • Related Report
      2010 Annual Research Report
  • [Presentation] A Superconducting qubit as a quantum transformer between a microscopic quantum memory and a macroscopic resonator2010

    • Author(s)
      Alexander Kemp
    • Organizer
      ICQT2010(NII)
    • Place of Presentation
      国立情報学研究所
    • Year and Date
      2010-10-21
    • Related Report
      2010 Annual Research Report
  • [Presentation] JBA測定による被測定量子ビットのエネルギー変化とそれを利用した量子フィードバックの提案2010

    • Author(s)
      角柳孝輔
    • Organizer
      日本物理学会(秋季大会)
    • Place of Presentation
      大阪府立大学
    • Year and Date
      2010-09-23
    • Related Report
      2010 Annual Research Report
  • [Presentation] Observation of sigma x coupling signal in gap-tunable flux qubit2010

    • Author(s)
      Xiaobo Zhu
    • Organizer
      日本物理学会(秋季大会)
    • Place of Presentation
      大阪府立大学
    • Year and Date
      2010-09-23
    • Related Report
      2010 Annual Research Report
  • [Presentation] デコヒーレンスが強い場合の超伝導量子ビット読み出しの終状態について2010

    • Author(s)
      中ノ勇人
    • Organizer
      日本物理学会(秋季大会)
    • Place of Presentation
      大阪府立大学
    • Year and Date
      2010-09-23
    • Related Report
      2010 Annual Research Report
  • [Presentation] 超伝導量子ビット・マイクロ波光子系における量子状態測定2010

    • Author(s)
      仙場浩一
    • Organizer
      小澤正直先生ダブル受賞記念講演会
    • Place of Presentation
      国立情報学研究所
    • Year and Date
      2010-09-17
    • Related Report
      2010 Annual Research Report
  • [Presentation] 量子情報・量子計算,''2010

    • Author(s)
      根本 香絵
    • Organizer
      情報計算化学生物学会 年会(CBI Annual meeting2010) 15(invited talk)
    • Place of Presentation
      一橋記念講堂
    • Year and Date
      2010-09-15
    • Related Report
      2012 Final Research Report
  • [Presentation] 量子情報・量子計算2010

    • Author(s)
      根本香絵
    • Organizer
      情報計算化学生物学会年会(CBI Annual meeting 2010)
    • Place of Presentation
      一ツ橋記念講堂
    • Year and Date
      2010-09-15
    • Related Report
      2010 Annual Research Report
  • [Presentation] トンネルエネルギー可変な超伝導磁束量子ビットのコヒーレント制御2010

    • Author(s)
      仙場浩一
    • Organizer
      応用物理学学術講演会(2010年秋季)
    • Place of Presentation
      長崎大学
    • Year and Date
      2010-09-14
    • Related Report
      2010 Annual Research Report
  • [Presentation] 超伝導量子ビットの実験と量子力学の基礎的問題2010

    • Author(s)
      中ノ勇人
    • Organizer
      QBICサマースクール
    • Place of Presentation
      東京理科大学
    • Year and Date
      2010-08-27
    • Related Report
      2010 Annual Research Report
  • [Presentation] マイクロ波共振器・ジョセフソン量子ビット系のコヒーレント量子操作2010

    • Author(s)
      仙場浩一
    • Organizer
      外部場の時間操作と実時間物理現象
    • Place of Presentation
      東京大学
    • Year and Date
      2010-06-23
    • Related Report
      2010 Annual Research Report
  • [Presentation] ジョセフソン分岐増幅器をプローブとする量子ビット測定における、プローブ・量子ビット相関の時間発展と混合状態への転移の解析2010

    • Author(s)
      中ノ勇人
    • Organizer
      外部場の時間操作と実時間物理現象
    • Place of Presentation
      東京大学
    • Year and Date
      2010-06-23
    • Related Report
      2010 Annual Research Report
  • [Presentation] Manipulation of entanglement in the heterogeneous guantum system2010

    • Author(s)
      仙場浩一
    • Organizer
      3rd IQIS 2010
    • Place of Presentation
      Turin, Italy
    • Year and Date
      2010-05-27
    • Related Report
      2010 Annual Research Report
  • [Presentation] 電圧状態転移後のジョセフソン接合の量子ダイナミクスの考察2010

    • Author(s)
      中ノ勇人
    • Organizer
      量子情報技術研究会(QIT22)
    • Place of Presentation
      大阪大学
    • Year and Date
      2010-05-10
    • Related Report
      2010 Annual Research Report
  • [Presentation] Superconducting flux qubit NV-diamond hybrid quantum system2010

    • Author(s)
      Kouichi Semba
    • Organizer
      The 11th US-Japan Joint Seminar on Quantum Electronics and Laser Spectroscopy(Invited talk)
    • Place of Presentation
      "Ultimate Quantum Systems of Light andMatter- Control and Applications"
    • Year and Date
      2010-04-12
    • Related Report
      2012 Final Research Report
  • [Presentation] Superconductivity and Josephson circuit QED2010

    • Author(s)
      仙場浩一
    • Organizer
      Quantum Information Processing Summer School 2010
    • Place of Presentation
      沖縄
    • Related Report
      2010 Annual Research Report
  • [Presentation] 超伝導量子ビット測定における、量子ビット・プローブ間のエンタングルメント形成とその破壊2010

    • Author(s)
      中ノ勇人
    • Organizer
      Quantum coherence and decoherence
    • Place of Presentation
      Benasque, Spain
    • Related Report
      2010 Annual Research Report
  • [Presentation] 超伝導量子ビット読み出し過程の情報理論的考察2010

    • Author(s)
      中ノ勇人
    • Organizer
      第23回量子情報技術研究会
    • Place of Presentation
      東京
    • Related Report
      2010 Annual Research Report
  • [Presentation] Coherent Coupling of a Superconducting Flux Qubit to an Electron Spin Ensemble in Diamond

    • Author(s)
      Kouichi Semba
    • Organizer
      Gordon Research Conference : Quantum Science
    • Place of Presentation
      Stonehill College, Easton, MA, USA
    • Related Report
      2012 Annual Research Report
    • Invited
  • [Presentation] Superconducting flux qubit NV-diamond hybrid quantum system

    • Author(s)
      Kouichi Semba
    • Organizer
      The 11th US-Japan Joint Seminar on Quantum Electronics and Laser Spectroscopy “Ultimate Quantum Systems of Light and Matter- Control and Applications”
    • Place of Presentation
      Nara Prefectural New Public Hall, Nara Japan
    • Related Report
      2012 Annual Research Report
    • Invited
  • [Presentation] 超伝導キュービット・ダイヤモンドNV センタハイブリッド量子系

    • Author(s)
      Kouichi Semba
    • Organizer
      第60回応用物理学会春季学術講演会
    • Place of Presentation
      薄膜・表面 分科内招待講演 神奈川工科大学
    • Related Report
      2012 Annual Research Report
    • Invited
  • [Presentation] Josephson circuit QED and hybrid quantum systems

    • Author(s)
      Kouichi Semba
    • Organizer
      Interdisciplinary Workshop on Quantum Device ~through Mathematical Structure ~
    • Place of Presentation
      National Institute of Informatics Chiyoda-ku Tokyo, Japan
    • Related Report
      2012 Annual Research Report
    • Invited
  • [Presentation] Coherent operation in a superconductor-diamond hybrid system

    • Author(s)
      S. Saito, X. Zhu, Y. Matsuzaki, W.J. Munro, K. Kakuyanagi, N. Mizuochi, T. Shimooka,K. Nemoto, K. Semba
    • Organizer
      19th Central European Workshop on Quantum Optics 2012
    • Place of Presentation
      Sinaia, Romania
    • Related Report
      2012 Annual Research Report
    • Invited
  • [Presentation] Realizing Quantum Memories for Superconducting Qubits: Storage and Retrieval of entangled quantum states

    • Author(s)
      W.J. Munro, S. Saito, X. Zhu, R. Amsuss, Y. Matsuzaki, K. Kakuyanagi, T. Shimo-Oka, N. Mizuochi, K. Nemoto, and K. Semba
    • Organizer
      Annual EQuS Workshop
    • Place of Presentation
      Wollongong, Australia
    • Related Report
      2012 Annual Research Report
    • Invited
  • [Presentation] Quantum memory operations in a superconductor-diamond hybrid system

    • Author(s)
      S. Saito, X. Zhu, R. Amsuss, Y. Matsuzaki, K. Kakuyanagi, T. Shimo-Oka, N. Mizuochi, K. Nemoto, W. J. Munro, and K. Semba
    • Organizer
      The 3rd International Conference on Quantum Information and Technology
    • Place of Presentation
      Tokyo, Japan
    • Related Report
      2012 Annual Research Report
    • Invited
  • [Presentation] Hybrid system of a superconducting flux qubit and an electron spin ensemble in diamond: a theoretical analysis

    • Author(s)
      Y. Matsuzaki, S. Saito, X. Zhu, R. Amsuss, K. Kakuyanagi, T. Shimo-Oka, N. Mizuochi, K. Nemoto, W. J. Munro and K. Semba
    • Organizer
      The 3rd International Conference on Quantum Information and Technology
    • Place of Presentation
      Tokyo, Japan
    • Related Report
      2012 Annual Research Report
  • [Presentation] 超伝導・ダイヤモンド複合系における量子メモリ動作

    • Author(s)
      齊藤志郎,Xiaobo Zhu,Robert Amsuss,松崎雄一郎,角柳孝輔,下岡孝明,水落憲和,根本香絵,William J. Munro,仙場浩一
    • Organizer
      日本物理学会 第68回年次大会
    • Place of Presentation
      広島大学,日本
    • Related Report
      2012 Annual Research Report
  • [Presentation] 超伝導磁束量子ビットとスピン集団のコヒーレント結合ダイヤモンド中の電子スピン集団とが結合したハイブリッド系の理論解析

    • Author(s)
      松崎雄一郎,齊藤志郎,Xiaobo Zhu,Robert Amsuss,下岡孝明,水落憲和,根本香絵,William J. Munro,仙場浩一
    • Organizer
      日本物理学会 第68回年次大会
    • Place of Presentation
      広島大学,日本
    • Related Report
      2012 Annual Research Report
  • [Presentation] JBA 量子状態読み出し法での射影エラー確率

    • Author(s)
      角柳孝輔,馬場達也,松崎雄一郎,中ノ勇人,齊藤志郎,仙場浩一
    • Organizer
      応用物理学会
    • Place of Presentation
      松山大学・愛媛大学
    • Related Report
      2012 Annual Research Report
  • [Presentation] 超伝導量子ビットで観測された量子ゼノ効果

    • Author(s)
      角柳孝輔,馬場達也,松崎雄一郎,中ノ勇人,齊藤志郎,仙場浩一
    • Organizer
      日本物理学会
    • Place of Presentation
      横浜国立大学
    • Related Report
      2012 Annual Research Report
  • [Presentation] Energy Flow and Information Flow in Qubit Measurement Process

    • Author(s)
      Hayato Nakano
    • Organizer
      International Conference in Quantum Bio-Informatic Center
    • Place of Presentation
      量子生命情報センター(千葉県)
    • Related Report
      2011 Annual Research Report
    • Invited
  • [Presentation] 量子共振器と弱い相互作用をする2状態系の協同現象に関する考察

    • Author(s)
      中ノ勇人
    • Organizer
      量子情報技術時限研究会
    • Place of Presentation
      東京工業大学(東京都)
    • Related Report
      2011 Annual Research Report
  • [Presentation] Coupling an ensemble to a superconducting qubit

    • Author(s)
      Xiaobo Zhu
    • Organizer
      26th International Conference on Low Temperature Physics
    • Place of Presentation
      Beijing, China
    • Related Report
      2011 Annual Research Report
    • Invited
  • [Presentation] Generation of Non-Classical Microwave Photon States in an Inductor-Capacitor Resonator Coupled to a Superconducting Flux Qubit

    • Author(s)
      角柳孝輔、影井誠一郎、齊藤志郎、中ノ勇人、仙場浩一
    • Organizer
      第72回応用物理学会学術講演会
    • Place of Presentation
      山形大学(山形県)
    • Related Report
      2011 Annual Research Report
    • Invited
  • [Presentation] 超伝導量子回路が拓く量子情報処理の新たな可能性

    • Author(s)
      仙場浩一
    • Organizer
      第72回応用物理学会学術講演会
    • Place of Presentation
      山形大学(山形県)
    • Related Report
      2011 Annual Research Report
    • Invited
  • [Presentation] Toward hybrid quantum systems ~ A Quest for a Quantum Memory ~

    • Author(s)
      仙場浩一
    • Organizer
      NII湘南会議 “Hybrid Quantum Devides”
    • Place of Presentation
      湘南国際村センター(神奈川県)
    • Related Report
      2011 Annual Research Report
    • Invited
  • [Presentation] Coherent coupling of a superconducting flux qubit to an ensemble of NV-centers in diamond

    • Author(s)
      仙場浩一
    • Organizer
      Italy-TWIns-Waseda 2011"Quantum Technologies: Information, Communication and Computation"
    • Place of Presentation
      Waseda University, Tokyo, Japan
    • Related Report
      2011 Annual Research Report
    • Invited
  • [Presentation] 実験と理論から見る、ジョセフソン分岐増幅器(JBA)を用いた超伝導量子ビット読み出し過程における位相緩和

    • Author(s)
      中ノ勇人、角柳孝輔
    • Organizer
      第25回量子情報技術研究会(QIT25)
    • Place of Presentation
      大阪大学(大阪府)
    • Related Report
      2011 Annual Research Report
  • [Presentation] Coherent coupling of a superconducting flux qubit to an electron spin ensemble in diamond

    • Author(s)
      仙場浩一
    • Organizer
      (短期研究集会) 人工原子と光の相互作用を利用した量子デバイスのモデリング
    • Place of Presentation
      NII国立情報研究所(東京)
    • Related Report
      2011 Annual Research Report
    • Invited
  • [Presentation] 検出器を用いる量子ビット測定を「ダイナミクス」として理解する

    • Author(s)
      中ノ勇人、角柳孝輔
    • Organizer
      (短期研究集会) 人工原子と光の相互作用を利用した量子デバイスのモデリング
    • Place of Presentation
      NII国立情報研究所(東京)
    • Related Report
      2011 Annual Research Report
    • Invited
  • [Presentation] 超伝導量子ビットとスピン集団のコヒーレント結合

    • Author(s)
      齊藤志郎、William John Munro, 仙場浩一
    • Organizer
      日本磁気学会第181回研究会 スピンと量子情報処理・通信
    • Place of Presentation
      中央大学駿河台記念館(東京)
    • Related Report
      2011 Annual Research Report
    • Invited
  • [Presentation] 超伝導磁束量子ビットとスピン集団のコヒーレント結合

    • Author(s)
      齊藤志郎、William John Munro, 仙場浩一
    • Organizer
      PPSS2012(超伝導国際会議)
    • Place of Presentation
      Lecture Hall, Osaka Museum of History (Osaka)
    • Related Report
      2011 Annual Research Report
    • Invited
  • [Presentation] Coherent coupling of a superconducting flux qubit to an electron spin ensemble in diamond

    • Author(s)
      Xiaobo Zhu
    • Organizer
      APS March meeting 2012
    • Place of Presentation
      Boston, USA
    • Related Report
      2011 Annual Research Report
  • [Presentation] 「量子ビットの状態を検出器で測定する」過程の量子ダイナミクス

    • Author(s)
      中ノ勇人
    • Organizer
      第14回量子情報関東Student Chapter
    • Place of Presentation
      東京理科大学(東京)
    • Related Report
      2011 Annual Research Report
    • Invited
  • [Presentation] Spectrum and dynamics observed in a quantum hybrid system

    • Author(s)
      仙場浩一
    • Organizer
      Avoided ? Crossing of Eigenvalue Curves
    • Place of Presentation
      九州大学(福岡県)
    • Related Report
      2011 Annual Research Report
    • Invited
  • [Presentation] 超伝導磁束量子ビットとスピン集団のコヒーレント結合

    • Author(s)
      齊藤志郎
    • Organizer
      2012年春季 第59回応用物理学関係連合講演会
    • Place of Presentation
      早稲田大学(東京都)
    • Related Report
      2011 Annual Research Report
  • [Presentation] JBA測定による量子ビットのオンチップ状態制御

    • Author(s)
      角柳孝輔
    • Organizer
      2012年春季 第59回応用物理学関係連合講演会
    • Place of Presentation
      早稲田大学(東京都)
    • Related Report
      2011 Annual Research Report
  • [Presentation] Coherent coupling of a superconducting flux qubit to an electron spin ensemble in diamond

    • Author(s)
      仙場浩一
    • Organizer
      Quantum Information and Measurement (QIM2012), Laser Optics
    • Place of Presentation
      Berlin, Germany
    • Related Report
      2011 Annual Research Report
    • Invited
  • [Remarks] 受賞:応用物理学会論文賞 2011.7.8. K. Kakuyanagi, S. Kagei, S. Saito, H. Nakano, and K. Semba, Generation of Non-Classical Microwave Photon States in an Inductor-Capacitor Resonator Coupled to a Superconducting Flux Qubit, Appl. Phys. Express 査読有3 103101 (2010)

    • Related Report
      2012 Final Research Report
  • [Remarks] 「量子メモリーの原理実験に成功 ~ ダイヤモンドと超伝導ハイブリッド系の量子状態制御に初めて成功 ~」

    • URL

      http://www.ntt.co.jp/news2011/1110/111012a.html

    • Related Report
      2012 Final Research Report
  • [Remarks]

    • URL

      http://www.brl.ntt.co.jp/J/2011/10/latest_topics_201110130201.html

    • Related Report
      2012 Final Research Report
  • [Remarks] 「ダイヤモンドと超伝導量子ビットを直接組み合わせたハイブリッド系の量子状態制御に 世界で初めて成功」

    • URL

      http://www.ntt.co.jp/journal/1201/files/jn201201063.pdf

    • Related Report
      2012 Final Research Report
  • [Remarks] 量子情報の最先端をつたえる Interview #001 仙場浩一 特任教授 国立情報学研究所

    • URL

      http://www.ryosi.com/qis/201207/01/

    • Related Report
      2012 Final Research Report
  • [Remarks] 記事: X. Zhu, et al. Nature 478, 221.224 (2011) : Spins coupled to a persistent current, Nature, News & Views 478, 195-196 (2011)

    • Related Report
      2012 Final Research Report
  • [Remarks] 仙場 浩一, 3000万個で量子もつれ日経サイエンス 2012年1月号 p.25

    • Related Report
      2012 Final Research Report
  • [Remarks] 根本 香絵, NII, U Osaka Observe SC Qubit in Diamond, Observations may further Quantum Memory Technology, Superconductor Week Vol.26 No.1, pp.5-6, 2012/2/13

    • Related Report
      2012 Final Research Report
  • [Remarks] 「NTTなど、量子メモリーの原理実験に成功.「量子もつれ」振動を制御」asahi.com(朝日新聞社):2011年10月13日

    • Related Report
      2012 Final Research Report
  • [Remarks] 「量子メモリー実証成功, NTTなど」日経産業新聞 2011年10月13日 朝刊(11面)掲載

    • Related Report
      2012 Final Research Report
  • [Remarks] NTTなど、量子メモリーの原理実験に成功-「量子もつれ」振動を制御 日刊工業新聞2011年10月13日 朝刊(21面)掲載

    • URL

      http://www.nikkan.co.jp/news/nkx0720111013eaag.html

    • Related Report
      2012 Final Research Report
  • [Remarks] 「NTT/阪大/NII量子メモリーの原理実験に成功」, Laser Focus World: 2011/10/14 東

    • URL

      http://www.lfw-japan.jp/news2011/news_20111014_03.html

    • Related Report
      2012 Final Research Report
  • [Remarks] 「ダイヤモンドと超伝導量子ビットを直接組み合わせたハイブリッド系の量子状態制御に世界で初めて成功」 NTT 技術ジャーナルFOCUS ON THE NEWS 2012年1月号 p.63

    • Related Report
      2012 Final Research Report
  • [Remarks] 仙場 浩一,研究者紹介NTT 技術ジャーナル2012年1月号p.64

    • URL

      http://www.ntt.co.jp/journal/1201/files/jn201201063.pdf

    • Related Report
      2012 Final Research Report
  • [Remarks] 量子メモリーの原理実験に成功 - ダイヤモンドと超伝導ハイブリッド系の量子状態制御に初めて成功 -

    • URL

      http://www.ntt.co.jp/news2011/1110/111012a.html

    • Related Report
      2012 Annual Research Report
  • [Remarks] 量子メモリーの原理実験に成功 ~ ダイヤモンドと超伝導ハイブリッド系の量子状態制御に初めて成功 ~

    • URL

      http://www.brl.ntt.co.jp/J/2011/10/latest_topics_201110130201.html

    • Related Report
      2012 Annual Research Report
  • [Remarks] 注目のキーワードVol. 1 『量子』 量子研究の成果と活用の未来 拡がる量子活用分野への道と課題

    • URL

      http://www.ntt.co.jp/RD/OFIS/keywords/vol1_quantum.html

    • Related Report
      2012 Annual Research Report
  • [Remarks] ダイヤモンドと超伝導量子ビットを直接組み合わせたハイブリッド系の量子状態制御に 世界で初めて成功

    • URL

      http://www.ntt.co.jp/journal/1201/files/jn201201063.pdf

    • Related Report
      2012 Annual Research Report
  • [Remarks] 量子情報の最先端をつたえる Interview #001 仙場浩一 特任教授 国立情報学研究所

    • URL

      http://www.ryosi.com/qis/201207/01/

    • Related Report
      2012 Annual Research Report
  • [Remarks] NTT物性科学基礎研究所 物超グループHP

    • URL

      http://www.brl.ntt.co.jp/group/butsucho-g/

    • Related Report
      2011 Annual Research Report
  • [Remarks] 量子メモリーの原理実験に成功 ~ ダイヤモンドと超伝導量子ビット ハイブリッド系 ~

    • URL

      http://www.brl.ntt.co.jp/J/2011/10/latest_topics_201110130201.html

    • Related Report
      2011 Annual Research Report
  • [Remarks] 注目のキーワードVol. 1 『量子』 量子研究の成果と活用の未来 拡がる量子活用分野への道と課題

    • URL

      http://www.ntt.co.jp/RD/OFIS/keywords/vol1_quantum.html

    • Related Report
      2011 Annual Research Report
  • [Remarks] ダイヤモンドと超伝導量子ビットを直接組み合わせたハイブリッド系の量子状態制御に 世界で初めて成功

    • URL

      http://www.ntt.co.jp/journal/1201/files/jn201201063.pdf

    • Related Report
      2011 Annual Research Report
  • [Remarks] 量子情報の最先端をつたえる Interview #001 仙場浩一 特任教授 国立情報学研究所

    • URL

      http://www.ryosi.com/qis/201207/01/

    • Related Report
      2011 Annual Research Report
  • [Remarks]

    • URL

      http://www.brl.ntt.co.jp/group/butsucho-g/

    • Related Report
      2010 Annual Research Report
  • [Patent(Industrial Property Rights)] 量子状態制御方法2010

    • Inventor(s)
      角柳孝輔,アレクサンダーケンプ, 仙場浩一
    • Industrial Property Rights Holder
      日本電信電話株式会社
    • Industrial Property Number
      2010-205245
    • Filing Date
      2010-09-14
    • Related Report
      2012 Final Research Report
  • [Patent(Industrial Property Rights)] 超伝導磁束量子ビット回路2010

    • Inventor(s)
      ズーシャオボ,齊藤志郎,ケンプアレクサンダー,仙場浩一
    • Industrial Property Rights Holder
      日本電信電話株式会社
    • Industrial Property Number
      2010-151720
    • Filing Date
      2010-07-02
    • Related Report
      2012 Final Research Report
  • [Patent(Industrial Property Rights)] 超伝導磁束量子ビット回路2010

    • Inventor(s)
      ズー・シャオボ,齊藤志郎、ケンプ・アレクサンダー,仙場浩一
    • Industrial Property Rights Holder
      日本電信電話
    • Industrial Property Number
      2010-151720
    • Filing Date
      2010-07-02
    • Related Report
      2010 Annual Research Report

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Published: 2010-08-23   Modified: 2019-07-29  

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