Control of Electron Wave Orbitals for Quantum Spin Circuits

• Project/Area Number: 25790006
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Nanostructural physics
• Research Institution: Institute of Physical and Chemical Research
• Principal Investigator: Nakajima Takashi 国立研究開発法人理化学研究所, 創発物性科学研究センター, 特別研究員 (60534344)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Project Status: Completed (Fiscal Year 2015)
• Budget Amount: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000); Fiscal Year 2015: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000); Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2013: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
• Keywords: 電子スピン / コヒーレント制御 / 量子ドット / エッジチャネル / 電子スピン共鳴 / 核スピン / デコヒーレンス / 試料作成 / 測定系構築 / 実験室整備

Outline of Final Research Achievements

Recent technical advances in manipulating quantum mechanical properties of electrons in solid-state devices suggest that the development of novel quantum technologies including quantum computation is feasible in near future. We aimed to use coherent electron waves known as edge states to unveil the influence of nuclear spin fluctuations against the quantum mechanical properties of electron spins. Then we realized selective spin injection to a quantum dot structure by using the edge states. We believe that our results will contribute to development of future quantum devices based on electron spins.

Research Products

• [Journal Article] Coherent electron-spin-resonance manipulation of three individual spins in a triple quantum dot (2016)
  • Author(s): A. Noiri, J. Yoneda, T. Nakajima, T. Otsuka, M. R. Delbecq, K. Takeda, S. Amaha, G. Allison, A. Ludwig, A. D. Wieck, S. Tarucha
  • Journal Title: Applied Physics Letters Volume: 108 Issue: 15 Pages: 153101-153101
  • DOI: 10.1063/1.4945592
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Quantum Dephasing in a Gated GaAs Triple Quantum Dot due to Nonergodic Noise (2016)
  • Author(s): M. R. Delbecq, T. Nakajima, P. Stano, T. Otsuka, S. Amaha, J. Yoneda, K. Takeda, G. Allison, A. Ludwig, A. D. Wieck, S. Tarucha
  • Journal Title: Physical Review Letters Volume: 116 Issue: 4 Pages: 0468021-5
  • DOI: 10.1103/physrevlett.116.046802
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Spin-dependent current through a quantum dot from spin-polarized nonequilibrium quantum Hall edge channels (2015)
  • Author(s): H. Kiyama, T. Nakajima, S. Teraoka, A. Oiwa, S. Tarucha
  • Journal Title: Physical Review B Volume: 91 Issue: 15 Pages: 155302-155302
  • DOI: 10.1103/physrevb.91.155302
  • Peer Reviewed
• [Journal Article] Fast Electrical Control of Single Electron Spins in Quantum Dots with Vanishing Influence from Nuclear Spins (2014)
  • Author(s): J. Yoneda, T. Otsuka, T. Nakajima, T. Takakura, T. Obata, M. Pioro-Ladriere, H. Lu, C. J. Palmstrom, A. C. Gossard, S. Tarucha
  • Journal Title: Physical Review Letters Volume: 113 Issue: 26
  • DOI: 10.1103/physrevlett.113.267601
  • Peer Reviewed
• [Journal Article] Full control of quadruple quantum dot circuit charge states in the single electron regime (2014)
  • Author(s): M. R. Delbecq, T. Nakajima, T. Otsuka, S. Amaha, J. D. Watson, M. J. Manfra, S. Tarucha
  • Journal Title: Applied Physics Letters Volume: 104 Issue: 18 Pages: 1831111-3
  • DOI: 10.1063/1.4875909
  • Peer Reviewed
• [Journal Article] Measurement of Energy Relaxation in Quantum Hall Edge States Utilizing Quantum Point Contacts (2013)
  • Author(s): T. Otsuka, Y. Sugihara, J. Yoneda, T. Nakajima, and S. Tarucha
  • Journal Title: Journal of the Physical Society of Japan Volume: 83 Issue: 1 Pages: 14710-14710
  • DOI: 10.7566/jpsj.83.014710
  • Peer Reviewed
• [Journal Article] Electrical Control of Flying Spin Precession in Chiral 1D Edge States (2013)
  • Author(s): T. Nakajima, K. T. Lin, S. Komiyama
  • Journal Title: AIP Conference Proceedings Volume: 1566 Pages: 301-302
  • DOI: 10.1063/1.4848405
  • Peer Reviewed
• [Presentation] 三重量子ドットにおける準安定電荷状態を利用したスピン・電荷変換 (2016)
  • Author(s): 中島峻, M. R. Delbecq, 大塚朋廣, 天羽真一, 米田淳, 野入亮人, 武田健太, Giles Allison, Arne Ludwig, Andreas D. Wieck, 樽茶清悟
  • Organizer: 日本物理学会年次大会第71回年次大会
  • Place of Presentation: 東北学院大学・仙台市・宮城
  • Year and Date: 2016-03-19
• [Presentation] 三重量子ドット電子スピン共鳴における局所磁場差と交換相互作用の競合 (2016)
  • Author(s): 米田淳, 野入亮人, 中島峻, 大塚朋廣, M. R. Delbecq, 天羽真一, Arne Ludwig, Andreas D. Wieck, 樽茶清悟
  • Organizer: 日本物理学会年次大会第71回年次大会
  • Place of Presentation: 東北学院大学・仙台市・宮城
  • Year and Date: 2016-03-19
• [Presentation] 電極と結合した量子ドットにおけるスピン緩和測定 (2016)
  • Author(s): 大塚朋廣, 中島峻, M. R. Delbecq, 天羽真一, 米田淳, 武田健太, Giles Allison, 野入亮人, 伊藤匠, Arne Ludwig, Andreas D. Wieck, 樽茶清悟
  • Organizer: 日本物理学会年次大会第71回年次大会
  • Place of Presentation: 東北学院大学・仙台市・宮城
  • Year and Date: 2016-03-19
• [Presentation] Bayesian estimation of nuclear-spin bath for adaptive feedback with a single-electron spin qubit (2016)
  • Author(s): K. Kawasaki, T. Nakajima, J. Yoneda, M. Delbecq, S. Amaha, T. Otsuka, K. Takeda and S. Tarucha
  • Organizer: International Symposium on Dynamics in Artificial Quantum System
  • Place of Presentation: 東京大学先端科学技術研究センター・駒場・東京
  • Year and Date: 2016-01-12
  • Int'l Joint Research
• [Presentation] Hybrid cQED architecture as a model system for non-equilibrium physics in condensed matter (2016)
  • Author(s): G. Allison, M. R. Delbecq, N. Lambert, T. Nakajima, J. Yoneda, K. Takeda, M. Marx, T. Otsuka, S. Amaha, F. Nori, and S. Tarucha
  • Organizer: International Symposium on Dynamics in Artificial Quantum System
  • Place of Presentation: 東京大学先端科学技術研究センター・駒場・東京
  • Year and Date: 2016-01-12
  • Int'l Joint Research
• [Presentation] Coherent electron-spin-resonance control of three individual spins in a triple quantum dot (2016)
  • Author(s): A. Noiri, J. Yoneda, T. Nakajima, T. Otsuka, M. R. Delbecq, K. Takeda, S. Amaha, G. Allison, A. Ludwig, A. D. Wieck, and S. Tarucha
  • Organizer: International Symposium on Dynamics in Artificial Quantum System
  • Place of Presentation: 東京大学先端科学技術研究センター・駒場・東京
  • Year and Date: 2016-01-12
  • Int'l Joint Research
• [Presentation] Electron spin resonance in a quadruple quantum dot (2016)
  • Author(s): T. Otsuka, T. Nakajima, M. R. Delbecq, S. Amaha, J. Yoneda, K. Takeda, G. Allison, T. Ito, R. Sugawara, A. Noiri, A. Ludwig, A. D. Wieck, and S. Tarucha
  • Organizer: International Symposium on Dynamics in Artificial Quantum System
  • Place of Presentation: 東京大学先端科学技術研究センター・駒場・東京
  • Year and Date: 2016-01-12
  • Int'l Joint Research
• [Presentation] Controlling entanglement of spin qubits in a triple quantum dot (2016)
  • Author(s): T. Nakajima, M. R. Delbecq, T. Otsuka, S. Amaha, J. Yoneda, A. Noiri, K. Takeda, G. Allison, A. Ludwig, A. D. Wieck, and S. Tarucha
  • Organizer: International Symposium on Dynamics in Artificial Quantum System
  • Place of Presentation: 東京大学先端科学技術研究センター・駒場・東京
  • Year and Date: 2016-01-12
  • Int'l Joint Research
• [Presentation] Generation of locally and non-locally entangled electron spin pairs in a triple quantum dot (2015)
  • Author(s): 中島峻
  • Organizer: International Workshop : Quantum Nanostructures and Electron-Nuclear Spin Interactions
  • Place of Presentation: 東北大学・仙台市・宮城
  • Year and Date: 2015-10-19
  • Int'l Joint Research / Invited
• [Presentation] 三重量子ドットにおける非隣接スピンもつれ状態の形成と観測 (2015)
  • Author(s): 中島峻，Matthieu R. Delbecq，大塚朋廣，天羽真一，米田淳，野入亮人，武田健太，Arne Ludwig，Andreas D. Wieck，樽茶清悟
  • Organizer: 日本物理学会2015年秋季大会
  • Place of Presentation: 関西大学・吹田市・大阪
  • Year and Date: 2015-09-16
• [Presentation] 四重量子ドットにおける単一電子スピン共鳴 (2015)
  • Author(s): 大塚朋廣，中島峻，Matthieu Delbecq，天羽真一，米田淳，武田健太，野入亮人，菅原烈，Giles Allison，Arne Ludwig，Andreas Wieck，樽茶清悟
  • Organizer: 日本物理学会2015年秋季大会
  • Place of Presentation: 関西大学・吹田市・大阪
  • Year and Date: 2015-09-16
• [Presentation] 高速複数電荷計を用いた多重量子ドット電荷状態の観測 (2015)
  • Author(s): 伊藤匠，大塚朋廣，天羽真一，中島峻，Matthieu Delbecq，米田淳，武田健太，Giles Allison， 野入亮人，樽茶清悟
  • Organizer: 日本物理学会2015年秋季大会
  • Place of Presentation: 関西大学・吹田市・大阪
  • Year and Date: 2015-09-16
• [Presentation] 電極閉じ込め型シリコンMOS量子ドットの作製と評価 (2015)
  • Author(s): 米田淳，本田拓夢，武田健太，Marian Marx，大塚朋廣，中島峻，Matthieu Delbecq，天羽真一，Giles Allison，小寺哲夫，小田俊理，樽茶清悟
  • Organizer: 日本物理学会2015年秋季大会
  • Place of Presentation: 関西大学・吹田市・大阪
  • Year and Date: 2015-09-16
• [Presentation] Si2重量子ドット中の電子スピンの高速独立操作 (2015)
  • Author(s): 武田健太，神岡純，小幡利顕，大塚朋廣，中島峻，Matthieu Delbecq，天羽真一，米田淳，Giles Alison，野入亮人，菅原烈，小寺哲夫，小田俊理，樽茶清悟
  • Organizer: 日本物理学会2015年秋季大会
  • Place of Presentation: 関西大学・吹田市・大阪
  • Year and Date: 2015-09-16
• [Presentation] 川崎賢人，野入亮人，天羽真一，大塚朋廣，中島峻，米田淳，M. Delbecq，武田健太，樽茶清悟 (2015)
  • Author(s): 三角形型三重量子ドットの電荷輸送特性
  • Organizer: 日本物理学会2015年秋季大会
  • Place of Presentation: 関西大学・吹田市・大阪
  • Year and Date: 2015-09-16
• [Presentation] 三層量子井戸におけるν=2のスピン状態遷移と核スピン効果 (2015)
  • Author(s): 天羽真一，中島峻，樽茶清悟，羽田野剛司
  • Organizer: 日本物理学会2015年秋季大会
  • Place of Presentation: 関西大学・吹田市・大阪
  • Year and Date: 2015-09-16
• [Presentation] Probing spin states in a triple quantum dot by Fourier transform spectroscopy (2015)
  • Author(s): Takashi Nakajima, Matthieu R. Delbecq, Tomohiro Otsuka, Shinichi Amaha, Jun Yoneda, Akito Noiri, Kenta Takeda, Arne Ludwig, Andreas D. Wieck, and Seigo Tarucha
  • Organizer: Spintech VIII
  • Place of Presentation: Basel, Switzerland
  • Year and Date: 2015-08-10
  • Int'l Joint Research
• [Presentation] A strongly driven single-spin qubit in a Si/SiGe double quantum dot with a micro-magnet (2015)
  • Author(s): K. Takeda, J. Kamioka, T. Obata, T. Otsuka, T. Nakajima, M. R. Delbecq, S. Amaha, J. Yoneda, G. Allison, A. Noiri, R. Sugawara, T. Kodera, S. Oda, S. Tarucha
  • Organizer: Spintech VIII
  • Place of Presentation: Basel, Switzerland
  • Year and Date: 2015-08-10
  • Int'l Joint Research
• [Presentation] Boosting single electron spin flips in quantum dots (2015)
  • Author(s): Takumi Ito, Jun Yoneda, Kenta Takeda, Akito Noiri, Tomohiro Otsuka, Takashi Nakajima, Matthieu Delbecq, Shinichi Amaha, and Seigo Tarucha
  • Organizer: 21st International Conference on the Electronic Properties of Two-Dimensional Systems (EP2DS-21)
  • Place of Presentation: 仙台国際センター・仙台市・宮城
  • Year and Date: 2015-07-26
  • Int'l Joint Research
• [Presentation] Spin state transitions and interlayer charge transfer in a triple-layered quantum Hall system (2015)
  • Author(s): Shinichi Amaha, Takashi Nakajima, Seigo Tarucha, and Tsuyoshi Hatano
  • Organizer: 21st International Conference on the Electronic Properties of Two-Dimensional Systems (EP2DS-21)
  • Place of Presentation: 仙台国際センター・仙台市・宮城
  • Year and Date: 2015-07-26
  • Int'l Joint Research
• [Presentation] Realization and Evaluation of a Fast Single-lead Quantum Dot Probe (2015)
  • Author(s): Tomohiro Otsuka, Shinichi Amaha, Takashi Nakajima, Matthieu R. Delbecq, Jun Yoneda, Kenta Takeda, Retsu Sugawara, Arne Ludwig, Andreas D. Wieck, Seigo Tarucha
  • Organizer: 21st International Conference on the Electronic Properties of Two-Dimensional Systems (EP2DS-21)
  • Place of Presentation: 仙台国際センター・仙台市・宮城
  • Year and Date: 2015-07-26
  • Int'l Joint Research
• [Presentation] Selective Injection of Single Electron Spins into a Quantum Dot using Spin-polarized Non- equilibrium Quantum Hall Edge Channels (2015)
  • Author(s): Haruki Kiyama, Takashi Nakajima, Souichiro Teraoka, Akira Oiwa, and Seigo Tarucha
  • Organizer: 21st International Conference on the Electronic Properties of Two-Dimensional Systems (EP2DS-21)
  • Place of Presentation: 仙台国際センター・仙台市・宮城
  • Year and Date: 2015-07-26
  • Int'l Joint Research
• [Presentation] Single-electron Spin Resonance in a Quadruple Quantum Dot (2015)
  • Author(s): Tomohiro Otsuka, Takashi Nakajima, Matthieu R. Delbecq, Shinichi Amaha, Jun Yoneda, Kenta Takeda, Akito Noiri, Retsu Sugawara, Giles Allison, Arne Ludwig, Andreas D. Wieck, and Seigo Tarucha
  • Organizer: 21st International Conference on the Electronic Properties of Two-Dimensional Systems (EP2DS-21)
  • Place of Presentation: 仙台国際センター・仙台市・宮城
  • Year and Date: 2015-07-26
  • Int'l Joint Research
• [Presentation] A tunnel-coupled triangular triple quantum dot (2015)
  • Author(s): Akito Noiri, Kento Kawasaki, Shinichi Amaha, Tomohiro Otsuka, Takashi Nakajima, Jun Yoneda, Matthieu R. Delbecq, Kenta Takeda, and Seigo Tarucha
  • Organizer: 21st International Conference on the Electronic Properties of Two-Dimensional Systems (EP2DS-21)
  • Place of Presentation: 仙台国際センター・仙台市・宮城
  • Year and Date: 2015-07-26
  • Int'l Joint Research
• [Presentation] Enhanced coherence time of spin qubits in GaAs by fast measurements (2015)
  • Author(s): M. R. Delbecq, T. Nakajima, P. Stano, T. Otsuka, S. Amaha, J. Yoneda, K. Takeda, A. Noiri, G. Allison, A. Ludwig, A. D. Wieck and S. Tarucha
  • Organizer: 21st International Conference on the Electronic Properties of Two-Dimensional Systems (EP2DS-21)
  • Place of Presentation: 仙台国際センター・仙台市・宮城
  • Year and Date: 2015-07-26
  • Int'l Joint Research
• [Presentation] Electrically Pulsed Fourier Transform Spectroscopy of Coupled Electron Spins in Triple Quantum Dot (2015)
  • Author(s): T. Nakajima, M. R. Delbecq, T. Otsuka, S. Amaha, J. Yoneda, A. Noiri, K. Takeda, A. Ludwig, A. D. Wieck, and S. Tarucha
  • Organizer: 21st International Conference on the Electronic Properties of Two-Dimensional Systems (EP2DS-21)
  • Place of Presentation: 仙台国際センター・仙台市・宮城
  • Year and Date: 2015-07-26
  • Int'l Joint Research
• [Presentation] Addressable single-spin control in multiple quantum dots coupled in series (2015)
  • Author(s): T. Nakajima
  • Organizer: American Physical Society March Meeting 2015
  • Place of Presentation: Henry B. Gonzalez Convention Center, San Antonio, Texas, USA
  • Year and Date: 2015-03-02 – 2015-03-06
  • Invited
• [Presentation] Probing Fast Dynamics of Nuclear Polarization with RF Reflectometry (2015)
  • Author(s): Takashi Nakajima, Retsu Sugawara, Seigo Tarucha
  • Organizer: International Symposium on Quantum System and Nuclear Spin Related Phenomena
  • Place of Presentation: 宮城蔵王ロイヤルホテル（宮城県刈田郡蔵王町）
  • Year and Date: 2015-02-18 – 2015-02-20
• [Presentation] Vanishing Influence from Nuclear Spins on Strongly Driven Single Electron Spins in Quantum Dots (2015)
  • Author(s): J. Yoneda, T. Otsuka, T. Nakajima, T. Takakura, T. Obata, M. Pioro-Ladriere, H. Lu, C. J. Palmstrom, A. C. Gossard, S. Tarucha
  • Organizer: International Symposium on Quantum System and Nuclear Spin Related Phenomena
  • Place of Presentation: 宮城蔵王ロイヤルホテル（宮城県刈田郡蔵王町）
  • Year and Date: 2015-02-18 – 2015-02-20
• [Presentation] Increase by several orders of magnitude of the spin coherence time in GaAs by fast measurements (2015)
  • Author(s): M. R. Delbecq, T. Nakajima, T. Otsuka, S. Amaha, J. Yoneda, A. Noiri, A. Ludwig, A. D. Wieck, S. Tarucha
  • Organizer: International Symposium on Quantum System and Nuclear Spin Related Phenomena
  • Place of Presentation: 宮城蔵王ロイヤルホテル（宮城県刈田郡蔵王町）
  • Year and Date: 2015-02-18 – 2015-02-20
• [Presentation] Spin state transitions and interlayer charge transfer in a triple-layered quantum Hall system (2015)
  • Author(s): Shinichi Amaha, Kimitoshi Kono, Takashi Nakajima, Seigo Tarucha, Tsuyoshi Hatano
  • Organizer: International Symposium on Quantum System and Nuclear Spin Related Phenomena
  • Place of Presentation: 宮城蔵王ロイヤルホテル（宮城県刈田郡蔵王町）
  • Year and Date: 2015-02-18 – 2015-02-20
• [Presentation] Interlayer charge transfer and spin state transitions in a triple-layered quantum Hall system (2014)
  • Author(s): S. Amaha, T. Hatano, T. Nakajima, K. Kono, S. Tarucha
  • Organizer: 2014 Workshop on Innovative Nanoscale Devices and Systems
  • Place of Presentation: Hapuna Beach Prince Hotel, Hawaii, USA
  • Year and Date: 2014-11-30 – 2014-12-05
• [Presentation] Addressable Control of Three Spin Qubits in Semiconductor Triple Quantum Dot (2014)
  • Author(s): M. R. Delbecq, T. Nakajima, T. Otsuka, S. Amaha, J. Yoneda, A. Noiri, A. Ludwig, A. D. Wieck, S. Tarucha
  • Organizer: 2014 Workshop on Innovative Nanoscale Devices and Systems
  • Place of Presentation: Hapuna Beach Prince Hotel, Hawaii, USA
  • Year and Date: 2014-11-30 – 2014-12-05
• [Presentation] 三重量子ドットを用いたスピン・キュービット実験I (2014)
  • Author(s): 大塚朋廣、中島峻、マシュー・デルベック、天羽真一、米田淳、野入亮人、武田健太、菅原烈、樽茶清悟
  • Organizer: 日本物理学会2014年秋季大会
  • Place of Presentation: 名古屋大学（愛知県名古屋市）
  • Year and Date: 2014-09-07 – 2014-09-10
• [Presentation] 三重量子ドットを用いたスピン・キュービット実験II (2014)
  • Author(s): 中島峻、大塚朋廣、マシュー・デルベック、天羽真一、米田淳、野入亮人、武田健太、菅原烈、樽茶清悟
  • Organizer: 日本物理学会2014年秋季大会
  • Place of Presentation: 名古屋大学（愛知県名古屋市）
  • Year and Date: 2014-09-07 – 2014-09-10
• [Presentation] 微小磁石を備えたSi/SiGe2重量子ドットにおける単一電子スピン共鳴 (2014)
  • Author(s): 武田健太、神岡純、小幡利顕、大塚朋廣、中島峻、マシュー・デルベック、天羽真一、米田淳、野入亮人、菅原烈、小寺哲夫、小田俊理、樽茶清悟
  • Organizer: 日本物理学会2014年秋季大会
  • Place of Presentation: 名古屋大学（愛知県名古屋市）
  • Year and Date: 2014-09-07 – 2014-09-10
• [Presentation] 量子ホール系における核スピン偏極とNMRの高周波反射測定 (2014)
  • Author(s): 菅原烈、中島峻、樽茶清悟
  • Organizer: 日本物理学会2014年秋季大会
  • Place of Presentation: 名古屋大学（愛知県名古屋市）
  • Year and Date: 2014-09-07 – 2014-09-10
• [Presentation] Addressable control of single spin qubits in lateral triple quantum dot (2014)
  • Author(s): T. Nakajima, M. R. Delbecq, T. Otsuka, S. Amaha, J. Yoneda, A. Noiri, A. Ludwig, A. Wieck, S. Tarucha
  • Organizer: 27th International Conference on Low Temperature Physics
  • Place of Presentation: Palais Rouge, Buenos Aires, Argentina
  • Year and Date: 2014-08-06 – 2014-08-13
• [Presentation] Scaling-up Spin Qubits in Semiconductor Quantum Dots (2014)
  • Author(s): T. Nakajima, T. Otsuka, M. Delbecq, S. Amaha, J. Yoneda, A. Noiri, K. Takeda, J. Kamioka, R. Sugawara, J. Watson, M. Manfra, A. Wieck, and S. Tarucha
  • Organizer: FIRST International Symposium on Topological Quantum Technology
  • Place of Presentation: 東京大学本郷キャンパス（東京都）
• [Remarks] QUANTUM FUNCTIONAL SYSTEM RESEARCH GROUP
  • URL: http://qfsrg.riken.jp