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2013 Fiscal Year Final Research Report

Molecular spin quantum control

Planned Research

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Project AreaQuantum cybernetics - interdisciplinary studies of quantum controls and developments toward quantum computing
Project/Area Number 21102004
Research Category

Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)

Allocation TypeSingle-year Grants
Review Section Science and Engineering
Research InstitutionOsaka University

Principal Investigator

KITAGAWA Masahiro  大阪大学, 基礎工学研究科, 教授 (20252629)

Co-Investigator(Kenkyū-buntansha) TAKUI Takeji  大阪市立大学, 理学研究科, 特任教授 (10117955)
Co-Investigator(Renkei-kenkyūsha) SATO Kazunobu  大阪市立大学, 理学研究科, 教授 (90264796)
MORITA Yasushi  大阪大学, 理学研究科, 准教授 (70230133)
KAGAWA Akinori  大阪大学, 基礎工学研究科, 助教 (70533701)
Project Period (FY) 2009-07-23 – 2014-03-31
Keywords量子情報 / パルス磁気共鳴 / 分子スピン / スピン増幅 / パルス補償 / 動的核偏極 / ESR / 三重項状態
Research Abstract

We have demonstrated precise spin controls for quantum information processing by numerical optimization of pulse waveform and pulse compensation for transient phenomenon in a resonator. Using regioselectively isotope labeled molecules, we have realized nuclear polarization of 34 % at room temperature and spin amplification. We have developed Ku-band pulse ESR spectrometer with an arbitrary wave form generator and stripline resonator and succeeded in pulse ESR experiments at 150 mK.
We have designed molecules with electron spins and nuclear spins (molecular spins) which have desirable electromagnetic property for quantum control by means of magnetic resonance and characterized them.

  • Research Products

    (27 results)

All 2014 2013 2011 2010 2009 Other

All Journal Article (10 results) (of which Peer Reviewed: 10 results) Presentation (9 results) (of which Invited: 4 results) Book (5 results) Remarks (2 results) Patent(Industrial Property Rights) (1 results)

  • [Journal Article] Room-temperature hyperpolarization of nuclear spins in bulk2014

    • Author(s)
      K. Tateishi, M. Negoro, S. Nishida, A. Kagawa, Y. Morita, M. Kitagawa
    • Journal Title

      Proc. Natl. Acad. Sci

      Volume: 111 Pages: 7527-7530

    • DOI

      10.1073/pnas.1315778111.

    • Peer Reviewed
  • [Journal Article] An ab initio MO study of heavy atom effects on the zero-field splitting tensors of high-spin nitrenes: How the spin-orbit contributions affected2014

    • Author(s)
      Kenji Sugisaki, Kazuo Toyota, Kazunobu Sato, Daisuke Shiomi, Masahiro Kitagawa, Takeji Takui
    • Journal Title

      Phys. Chem. Chem. Phys

      Volume: 16 Pages: 9171-9181

    • DOI

      10.1039/c4cp00822g.

    • Peer Reviewed
  • [Journal Article] Dynamic Nuclear Polarization with Photoexcited Triplet Electrons in a Glass Matrix2013

    • Author(s)
      K. Tateishi, M. Negoro, A. Kagawa, M. Kitagawa
    • Journal Title

      Angewandte Chemie Int. Ed

      Volume: 52 Pages: 13307-13310

    • DOI

      10.1002/ange.201305674.

    • Peer Reviewed
  • [Journal Article] Hyperpolarization of Thin Films with Dynamic Nuclear Polarization Using Photoexcited Triplet Electrons2013

    • Author(s)
      K. Tateishi, M. Negoro, A. Kagawa, T. Uesaka, M. Kitagawa
    • Journal Title

      J. Phys. Soc. Jpn

      Volume: 82 Pages: 084005-1-5

    • DOI

      10.7566/JPSJ.82.084005.

    • Peer Reviewed
  • [Journal Article] Strongly driven electron spins using a Ku band stripline electron paramagnetic resonance resonator2013

    • Author(s)
      Y. S. Yap, H. Yamamoto, Y. Tabuchi, M. Negoro, A. Kagawa, M. Kitagawa
    • Journal Title

      J. Magn. Reson

      Volume: 232 Pages: 62-27

    • DOI

      10.1016/j.jmr.2013.04.015.

    • Peer Reviewed
  • [Journal Article] Pulsed electron spin nutation spectroscopy for weakly exchange-coupled multi-spin molecular systems with nuclear hyperfine couplings: a general approach to bi- and triradicals and determination of their spin dipolar and exchange interactions2013

    • Author(s)
      K. Ayabe, K. Sato, S. Nakazawa, S. Nishida, K. Sugisaki, T. Ise, Y. Morita, K. Toyota, D. Shiomi, M. Kitagawa, S. Suzuki, K. Okada, T. Takui
    • Journal Title

      Mol. Phys

      Volume: 111 Pages: 2767-2787

    • DOI

      10.1080/00268976.2013.811304.

    • Peer Reviewed
  • [Journal Article] Hexamethoxyphenalenyl as a Possible Quantum Spin Simulator: An Electronically Stabilized Neutral pi Radical with Novel Quantum Coherence Owing to Extremely High Nuclear Spin Degeneracy2013

    • Author(s)
      A. Ueda, S. Suzuki, K. Yoshida, K. Fukui, K. Sato, T. Takui, K. Nakasuji, Y. Morita
    • Journal Title

      Angew. Chem. Int. Ed

      Volume: 52 Pages: 4795-4799

    • DOI

      10.1002/anie.201301435.

    • Peer Reviewed
  • [Journal Article] Ligand-induced electron spin-assembly on a DNA tile2013

    • Author(s)
      H. Atsumi, S. Nakazawa, C. Dohno, K. Sato, T. Takui, K. Nakatani
    • Journal Title

      Chemical Communications

      Volume: 49 Pages: 6370-6372

    • DOI

      10.1039/c3cc41801d.

    • Peer Reviewed
  • [Journal Article] Scalable Spin Amplification with a Gain over a Hundred2011

    • Author(s)
      M. Negoro, K. Tateishi, A. Kagawa, M. Kitagawa
    • Journal Title

      Phys. Rev. Lett

      Volume: 107 Pages: 050503-1-5

    • DOI

      10.1103/PhysRevLett.107.050503.

    • Peer Reviewed
  • [Journal Article] Total compensation of pulse transients inside a resonator2010

    • Author(s)
      Y. Tabuchi, M. Negoro, K. Takeda, M. Kitagawa
    • Journal Title

      J. Magn. Reson

      Volume: 204 Pages: 327-332

    • DOI

      10.1016/j.jmr.2010.03.014.

    • Peer Reviewed
  • [Presentation] 任意波形マイクロ波を用いたESR 分光技術2014

    • Author(s)
      佐藤和信
    • Organizer
      日本化学会第93春季年会
    • Place of Presentation
      名古屋大学
    • Year and Date
      2014-03-27
  • [Presentation] Arbitrary Waveform Pulsed ESR at Very Low Temperature2014

    • Author(s)
      M. Kitagawa
    • Organizer
      The 5th International Workshop on Far-Infrared Technologies 2014
    • Place of Presentation
      Fukui university, Japan
    • Year and Date
      2014-03-06
    • Invited
  • [Presentation] Topological Protection of Quantum Information without Measurement2014

    • Author(s)
      M. Kitagawa, K. Fujii, M. Negoro, N. Imoto, and Y. Morita
    • Organizer
      FIRST International Symposium on Topological Quantum Technology
    • Place of Presentation
      Tokyo, Japan
    • Year and Date
      2014-01-29
    • Invited
  • [Presentation] Modified QRO 法による零磁場分裂テンソルのスピン軌道項のDFT 計算2013

    • Author(s)
      杉崎研司
    • Organizer
      第52回電子スピンサイエンス学会年会
    • Place of Presentation
      大宮ソニックシティー
    • Year and Date
      2013-10-24
  • [Presentation] Room-temperature hyperpolarization using photo-excited triplet electrons2013

    • Author(s)
      M. Negoro
    • Organizer
      4th international DNP Symposium
    • Place of Presentation
      Copenhagen, Denmark
    • Year and Date
      2013-08-29
  • [Presentation] Can open-shell chemistry contribute to electron spin science/spin technology of quantum computing and quantum information processing?2013

    • Author(s)
      T. Takui
    • Organizer
      The 13^<th> International Symposium on Spin and Magnetic Field Effects in Chemistry and Related Phenomena
    • Place of Presentation
      Bad Hofgastein, Australia
    • Year and Date
      2013-04-25
  • [Presentation] Spin amplification with hyperpolarized nuclei2013

    • Author(s)
      M. Negoro
    • Organizer
      The 11th US-Japan Joint Seminar on Quantum Electronics and Laser Spectroscopy
    • Place of Presentation
      Nara, Japan
    • Year and Date
      2013-04-11
    • Invited
  • [Presentation] Recent trends in organic high-spin/open-shell chemistry: Electron spin technology2013

    • Author(s)
      T. Takui
    • Organizer
      The 46^<th> Annual International Meeting of ESR Spectroscopy Group of Royal Society of Chemistry
    • Place of Presentation
      Univ. of Warwick, UK
    • Year and Date
      2013-04-09
  • [Presentation] スピン増幅の概念とスケーラブルな実現2011

    • Author(s)
      根来誠
    • Organizer
      日本物理学会
    • Place of Presentation
      富山大学
    • Year and Date
      2011-09-22
    • Invited
  • [Book] CSJ カレントレビュー12 未来材料を創出するπ電子系の科学2013

    • Author(s)
      森田靖
    • Total Pages
      120-126
    • Publisher
      公益財団法人日本科学会化学同人
  • [Book] 第二次先端ウオッチング調査:融合領域の創成 分子エレクトロニクスから分子スピンエレクトロニクスへの展望2013

    • Author(s)
      森田靖
    • Total Pages
      21-24
    • Publisher
      公益財団法人日本化学会学術研究活性化委員会
  • [Book] 有機分子スピンバッテリーの開発-縮重フロンティア分子軌道を利用した二次電池, 化学 vol.67 No.92013

    • Author(s)
      西田辰介
    • Total Pages
      37-43
    • Publisher
      化学同人
  • [Book] EPR of free radicals in solids II2013

    • Author(s)
      K. Sato, S. Nakazawa, S. Nishida, R. D. Rahimi, T. Yoshino, Y. Morita, K. Toyota, D. Shiomi, M. Kitagawa, T. Takui
    • Total Pages
      163-204
    • Publisher
      Springer-Verlag
  • [Book] Molecular Realizations of Quantum Computing 20072009

    • Author(s)
      K. Sato, S. Nakazawa, R. D. Rahimi, S. Nishida, T. Ise, D. Shiomi, K. Toyota, Y. Morita, M. Kitagawa, P. Carl, P. Hoefer, T. Takui
    • Total Pages
      58-162
    • Publisher
      World Scientific
  • [Remarks] 北川グループ

    • URL

      http://www.qc.ee.es.osaka-u.ac.jp/~qc/

  • [Remarks] 工位グループ

    • URL

      http://www.qcqis.sci.osaka-cu.ac.jp/ms/jp/

  • [Patent(Industrial Property Rights)] 量子誤り訂正方法、量子誤り訂正装置、および、量子情報格納装置2013

    • Inventor(s)
      根来誠、北川勝浩、森田靖、西田辰介、藤井啓裕
    • Industrial Property Rights Holder
      国立大学法人大阪大学
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      5376482
    • Filing Date
      2013-10-04

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Published: 2015-06-25  

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