Control of Electron Wave Orbitals for Quantum Spin Circuits
Project/Area Number |
25790006
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Research Category |
Grant-in-Aid for Young Scientists (B)
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Allocation Type | Multi-year Fund |
Research Field |
Nanostructural physics
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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
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Project Status |
Completed (Fiscal Year 2015)
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Budget Amount *help |
¥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)
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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.
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Report
(4 results)
Research Products
(47 results)
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[Journal Article] Coherent electron-spin-resonance manipulation of three individual spins in a triple quantum dot2016
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
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Journal Title
Applied Physics Letters
Volume: 108
Issue: 15
Pages: 153101-153101
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
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[Journal Article] Quantum Dephasing in a Gated GaAs Triple Quantum Dot due to Nonergodic Noise2016
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
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Journal Title
Physical Review Letters
Volume: 116
Issue: 4
Pages: 0468021-5
DOI
Related Report
Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
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[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
Related Report
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[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
Related Report
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[Presentation] Hybrid cQED architecture as a model system for non-equilibrium physics in condensed matter2016
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
Related Report
Int'l Joint Research
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[Presentation] Coherent electron-spin-resonance control of three individual spins in a triple quantum dot2016
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
Related Report
Int'l Joint Research
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[Presentation] Electron spin resonance in a quadruple quantum dot2016
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
Related Report
Int'l Joint Research
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[Presentation] Controlling entanglement of spin qubits in a triple quantum dot2016
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
Related Report
Int'l Joint Research
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[Presentation] Probing spin states in a triple quantum dot by Fourier transform spectroscopy2015
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
Related Report
Int'l Joint Research
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[Presentation] A strongly driven single-spin qubit in a Si/SiGe double quantum dot with a micro-magnet2015
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
Related Report
Int'l Joint Research
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[Presentation] Boosting single electron spin flips in quantum dots2015
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
Related Report
Int'l Joint Research
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[Presentation] Realization and Evaluation of a Fast Single-lead Quantum Dot Probe2015
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
Related Report
Int'l Joint Research
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[Presentation] Single-electron Spin Resonance in a Quadruple Quantum Dot2015
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
Related Report
Int'l Joint Research
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[Presentation] A tunnel-coupled triangular triple quantum dot2015
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
Related Report
Int'l Joint Research
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[Presentation] Enhanced coherence time of spin qubits in GaAs by fast measurements2015
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
Related Report
Int'l Joint Research
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[Presentation] Addressable Control of Three Spin Qubits in Semiconductor Triple Quantum Dot2014
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
Related Report
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[Presentation] Addressable control of single spin qubits in lateral triple quantum dot2014
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
Related Report
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[Presentation] Scaling-up Spin Qubits in Semiconductor Quantum Dots2014
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)
Related Report
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