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Spin quantum information transfer using dynamic quantum dots

Research Project

Project/Area Number 24686004
Research Category

Grant-in-Aid for Young Scientists (A)

Allocation TypePartial Multi-year Fund
Research Field Applied materials science/Crystal engineering
Research InstitutionNTT Basic Research Laboratories

Principal Investigator

SANADA Haruki  日本電信電話株式会社NTT物性科学基礎研究所, 量子光物性研究部, 主任研究員 (50417094)

Research Collaborator KUNIHASHI Yoji  
GOTOH Hideki  
ONOMITSU Koji  
KOHDA Makoto  
NITTA Junsaku  
SANTOS Paulo V.  
SOGAWA Tetsuomi  
Project Period (FY) 2012-04-01 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥22,360,000 (Direct Cost: ¥17,200,000、Indirect Cost: ¥5,160,000)
Fiscal Year 2014: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2013: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2012: ¥15,730,000 (Direct Cost: ¥12,100,000、Indirect Cost: ¥3,630,000)
Keywordsスピン / スピン軌道相互作用 / 表面弾性波 / 電子スピン共鳴 / 量子ドット / スピン起動相互作用
Outline of Final Research Achievements

Electron spins are possible candidates as qubits for solid state quantum computer. The most promising approach for spin control is based on electron spin resonance (ESR). However, ESR requires external magnetic fields, which are generated in spaces that greatly exceed individual electrons, thus making these complex and inefficient techniques unsuitable for device applications. We carried out spin transport experiments using trajectly-controlled "dynamic dots", which are realized by applying surface acoustic waves on semiconductor quantum wells. We observed the spin behavior of ESR even in the absence of external magnetic fields. This phenomenon allows us to manipulate spins in any three-dimensional direction by designing appropriate channel structures.

Report

(4 results)
  • 2014 Annual Research Report   Final Research Report ( PDF )
  • 2013 Annual Research Report
  • 2012 Annual Research Report
  • Research Products

    (30 results)

All 2015 2014 2013 Other

All Journal Article (6 results) (of which Peer Reviewed: 3 results) Presentation (19 results) (of which Invited: 6 results) Remarks (3 results) Patent(Industrial Property Rights) (2 results)

  • [Journal Article] Nonlinear optical spectra having characteristics of Fano interferences in coherently coupled lowest exciton biexciton states in semiconductor quantum dots2014

    • Author(s)
      H. Gotoh, H. Sanada, H. Yamaguchi, and T. Sogawa
    • Journal Title

      AIP Advances

      Volume: 4 Issue: 10 Pages: 107124-107124

    • DOI

      10.1063/1.4898642

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 磁場を使わない電子スピン操作-移動スピン共鳴2014

    • Author(s)
      眞田 治樹
    • Journal Title

      パリティ

      Volume: 2014年2月号 Pages: 48-51

    • NAID

      40019950465

    • Related Report
      2013 Annual Research Report
  • [Journal Article] 半導体におけるスピン軌道相互作用の新展開2014

    • Author(s)
      好田 誠、眞田 治樹
    • Journal Title

      応用物理

      Volume: 第83巻 第3号 Pages: 200-204

    • NAID

      130007718459

    • Related Report
      2013 Annual Research Report
  • [Journal Article] Modifying exciton optical properties in quantum dots with coherent phonons induced by ultrafast optical pulses2013

    • Author(s)
      H. Gotoh, H. Sanada, H. Yamaguchi, and T. Sogawa
    • Journal Title

      Appl. Phys. Lett.

      Volume: Vol.103 Issue: 11 Pages: 112104-112104

    • DOI

      10.1063/1.4821198

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 無磁場ESRによる電子スピン操作2013

    • Author(s)
      眞田 治樹、国橋 要司、後藤 秀樹、小野満 恒二、寒川 哲臣
    • Journal Title

      NTT技術ジャーナル

      Volume: Vol.25 No.9 Pages: 60-64

    • Related Report
      2013 Annual Research Report
  • [Journal Article] Manipulation of mobile spin coherence using magnetic-field-free electron spin resonance2013

    • Author(s)
      H. Sanada, Y. Kunihashi, H. Gotoh, M. Kohda, J. Nitta, P. V. Santos, and T. Sogawa
    • Journal Title

      Nature Physics

      Volume: 9 Issue: 5 Pages: 1-4

    • DOI

      10.1038/nphys2573

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Presentation] Electrical control of drifting spin coherence in GaAs quantum well2015

    • Author(s)
      国橋要司、眞田治樹、後藤秀樹、小野満恒二、好田誠、新田淳作、寒川哲臣
    • Organizer
      第62回応用物理学会春季学術講演会
    • Place of Presentation
      東海大学湘南キャンパス
    • Year and Date
      2015-03-14
    • Related Report
      2014 Annual Research Report
  • [Presentation] Detection of the exact persistent spin helix state using drift spin transport in GaAs quantum well2014

    • Author(s)
      国橋要司、眞田治樹、後藤秀樹、小野満恒二、好田誠、新田淳作、寒川哲臣
    • Organizer
      第75回応用物理学会秋季学術講演会
    • Place of Presentation
      北海道大学札幌キャンパス
    • Year and Date
      2014-09-19
    • Related Report
      2014 Annual Research Report
  • [Presentation] 量子ドット中の励起子分子状態の2色PL励起スペクトル法による評価2014

    • Author(s)
      後藤秀樹、眞田治樹、山口浩司、寒川哲臣
    • Organizer
      第75回応用物理学会秋季学術講演会
    • Place of Presentation
      北海道大学札幌キャンパス
    • Year and Date
      2014-09-18
    • Related Report
      2014 Annual Research Report
  • [Presentation] Anisotropic spin dynamics of drifting electrons with coexistence of Rashba and Dresselhaus spin-orbit interactions2014

    • Author(s)
      Y. Kunihashi, H. Sanada, H. Gotoh, K. Onomitsu, M. Kohda, J. Nitta, and T. Sogawa
    • Organizer
      International Conference on Solid State Devices and Materials (SSDM2014)
    • Place of Presentation
      つくば国際会議場
    • Year and Date
      2014-09-09
    • Related Report
      2014 Annual Research Report
  • [Presentation] 半導体中のスピン軌道相互作用を用いた無磁場スピン共鳴2014

    • Author(s)
      眞田治樹
    • Organizer
      物理学会2014年秋季大会 シンポジウム「表面スピンの基礎物性とスピントロニクス応用」
    • Place of Presentation
      中部大学春日井キャンパス
    • Year and Date
      2014-09-08
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] Direct imaging of long-distance spin transport under persistent spin helix condition in GaAs quantum well2014

    • Author(s)
      Y. Kunihashi, H. Sanada, H. Gotoh, K. Onomitsu, M. Kohda, J. Nitta, and T. Sogawa
    • Organizer
      International Conference on the Physics of Semiconductors (ICPS2014)
    • Place of Presentation
      アメリカ、オースティン
    • Year and Date
      2014-08-14
    • Related Report
      2014 Annual Research Report
  • [Presentation] 表面弾性波を用いた電子スピン輸送と無磁場ESR2014

    • Author(s)
      眞田治樹、国橋要司、後藤秀樹、小野満恒二、好田誠、新田淳作、P.V. Santos、寒川哲臣
    • Organizer
      東京大学生産技術研究所 光電子融合研究センター公開シンポジウム~光電子融合の展望~
    • Place of Presentation
      東京大学生産技術研究所
    • Year and Date
      2014-04-15
    • Related Report
      2014 Annual Research Report
  • [Presentation] GaAs量子井戸中をドリフトする電子スピンのゲート電界制御2014

    • Author(s)
      国橋要司、眞田治樹、後藤秀樹、小野満恒二、好田誠、新田淳作、寒川哲臣
    • Organizer
      東京大学生産技術研究所 光電子融合研究センター公開シンポジウム~光電子融合の展望~
    • Place of Presentation
      東京大学生産技術研究所
    • Year and Date
      2014-04-15
    • Related Report
      2014 Annual Research Report
  • [Presentation] 表面弾性波による電子スピン操作2013

    • Author(s)
      眞田治樹
    • Organizer
      物理学会第68回年次大会、領域4, 3, 5, 7, 10合同シンポジウム「フォノンの理解・制御によるエレクトロニクスの新展」
    • Place of Presentation
      広島大学(招待講演)
    • Year and Date
      2013-03-27
    • Related Report
      2012 Annual Research Report
  • [Presentation] Magnetic-field-free electron spin resonance in winding GaAs channel

    • Author(s)
      H. Sanada, Y. Kunihashi, H. Gotoh, K. Onomitsu, M. Kohda, J. Nitta, P. V. Santos, and T. Sogawa
    • Organizer
      16th International Conference on Modulated Semiconductor Structures (MSS-16)
    • Place of Presentation
      ヴロツワフ
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] Manipulation of electron spin coherence using acoustically induced moving dots in semiconductors

    • Author(s)
      H. Sanada, Y. Kunihashi, H. Gotoh, K. Onomitsu, M. Kohda, J. Nitta, P. V. Santos, and T. Sogawa
    • Organizer
      International Symposium on Advanced Nanodevices and Nanotechnology (ISANN 2013)
    • Place of Presentation
      カウアイ島
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] 移動スピン共鳴

    • Author(s)
      眞田治樹,国橋要司,後藤秀樹,小野満恒二,好田誠,新田淳作, P.V. Santos,寒川哲臣
    • Organizer
      第61回応用物理学会春季学術講演会、シンポジウム「スピン流物理の新展開」
    • Place of Presentation
      青山学院大学相模原キャンパス
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] Spin transport and manipulation by surface acoustic waves

    • Author(s)
      T. Sogawa and H. Sanada
    • Organizer
      12th Asia Pacific Physics Conference (APPC12)
    • Place of Presentation
      幕張メッセ
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] Coherent manipulation of electron spins travelling in semiconductors without external magnetic fields

    • Author(s)
      H. Sanada, Y. Kunihashi, H. Gotoh, K. Onomitsu, M. Kohda, J. Nitta, P. V. Santos, and T. Sogawa
    • Organizer
      International Symposium on Nanoscale Transport and Technology (ISNTT2013)
    • Place of Presentation
      NTT厚木研究開発センタ
    • Related Report
      2013 Annual Research Report
  • [Presentation] Gate-controlled spin precession of drifting electrons in GaAs QW

    • Author(s)
      Y. Kunihashi, H. Sanada, H. Gotoh, K. Onomitsu, M. Kohda, J. Nitta, and T. Sogawa
    • Organizer
      16th International Conference on Modulated Semiconductor Structures (MSS-16)
    • Place of Presentation
      ヴロツワフ
    • Related Report
      2013 Annual Research Report
  • [Presentation] Gate Control of Spatial Electron Spin Distribution in Persistent Spin Helix State

    • Author(s)
      Y. Kunihashi, H. Sanada, H. Gotoh, K. Onomitsu, M. Kohda, J. Nitta, and T. Sogawa
    • Organizer
      Solid State Device and Materials (SSDM)
    • Place of Presentation
      ヒルトン福岡シーホーク
    • Related Report
      2013 Annual Research Report
  • [Presentation] GaAs量子井戸中をドリフトする電子スピンの電気的制御

    • Author(s)
      国橋要司,眞田治樹,後藤秀樹,小野満恒二,好田誠,新田淳作,寒川哲臣
    • Organizer
      第74回応用物理学会秋季学術講演会
    • Place of Presentation
      同志社大学京田辺キャンパス
    • Related Report
      2013 Annual Research Report
  • [Presentation] 永久スピンらせん状態における光励起スピンダイナミクスのモンテカルロシミュレーション

    • Author(s)
      国橋要司,眞田治樹,後藤秀樹,小野満恒二,好田誠,新田淳作,寒川哲臣
    • Organizer
      第61回応用物理学会春季学術講演会
    • Place of Presentation
      青山学院大学相模原キャンパス
    • Related Report
      2013 Annual Research Report
  • [Presentation] Coherent manipulation of electron spins in acoustically induced moving dots

    • Author(s)
      H. Sanada, Y. Kunihashi, H. Gotoh, K. Onomitsu, M. Kohda, J. Nitta, P. V. Santos, and T. Sogawa
    • Organizer
      The 8th International Conference on Quantum Dots (QD2014)
    • Place of Presentation
      ピサ
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Remarks] NTT物性科学基礎研究所

    • URL

      http://www.brl.ntt.co.jp

    • Related Report
      2014 Annual Research Report
  • [Remarks] NTT物性科学基礎研究所

    • URL

      http://www.brl.ntt.co.jp/

    • Related Report
      2013 Annual Research Report
  • [Remarks] NTT物性科学基礎研究所ホームページ

    • URL

      http://www.brl.ntt.co.jp

    • Related Report
      2012 Annual Research Report
  • [Patent(Industrial Property Rights)] 電子スピン制御装置および制御方法2014

    • Inventor(s)
      眞田、国橋、後藤、寒川、好田、青木、新田
    • Industrial Property Rights Holder
      眞田、国橋、後藤、寒川、好田、青木、新田
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2014-107791
    • Filing Date
      2014-05-26
    • Related Report
      2014 Annual Research Report
  • [Patent(Industrial Property Rights)] 電子スピン操作素子2013

    • Inventor(s)
      眞田治樹、後藤秀樹、寒川哲臣、パウロサントス
    • Industrial Property Rights Holder
      NTTおよびポール・ドルーデ固体エレクトロニクス研究所
    • Industrial Property Number
      2013-034618
    • Filing Date
      2013-03-13
    • Related Report
      2012 Annual Research Report

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Published: 2012-04-24   Modified: 2019-07-29  

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