Investigation of electronic correlation effects using quantum electron optics
Project/Area Number |
26247050
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Research Category |
Grant-in-Aid for Scientific Research (A)
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Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Condensed matter physics I
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Research Institution | The University of Tokyo |
Principal Investigator |
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Co-Investigator(Kenkyū-buntansha) |
樽茶 清悟 東京大学, 工学(系)研究科(研究院), 教授 (40302799)
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Project Period (FY) |
2014-04-01 – 2017-03-31
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Project Status |
Completed (Fiscal Year 2016)
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Budget Amount *help |
¥38,610,000 (Direct Cost: ¥29,700,000、Indirect Cost: ¥8,910,000)
Fiscal Year 2016: ¥7,020,000 (Direct Cost: ¥5,400,000、Indirect Cost: ¥1,620,000)
Fiscal Year 2015: ¥15,080,000 (Direct Cost: ¥11,600,000、Indirect Cost: ¥3,480,000)
Fiscal Year 2014: ¥16,510,000 (Direct Cost: ¥12,700,000、Indirect Cost: ¥3,810,000)
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Keywords | 量子相関 / 量子ドット / 近藤効果 / 量子情報 |
Outline of Final Research Achievements |
We detected and controlled correlated states of electrons in units of a single electron, using quantum electron optics, where quantum states of propagating electrons are manipulated. Employing a single localized electron spin confined in a quantum dot embedded in an interferometer, we revealed microscopic natures and spatial extension of the Kondo state, where the localized spin is screened by its surrounding conducting electrons. We also developed technologies for transferring a single electron spin through a depleted channel and for splitting spatially a quantum mechanically correlated electron pair, to generated a non-local spin entangled state.
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Report
(4 results)
Research Products
(31 results)
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[Journal Article] Injection of a single electron from static to moving quantum dots2016
Author(s)
Benoit Bertrand, Sylvain Hermelin, Pierre-Andre Mortemousque, Shintaro Takada, Michihisa Yamamoto, Seigo Tarucha, Arne Ludwig, Andreas D Wieck, Christopher Bauerle and Tristan Meunier
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Journal Title
Nanotechnology
Volume: 27
Issue: 21
Pages: 2040011-5
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
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[Journal Article] Transmission Phase in the Kondo Regime Revealed in a Two-Path Interferometer2014
Author(s)
S. Takada, C. Bauerle, M. Yamamoto, K. Watanabe, S. Hermelin, T. Meunier, A. Alex, A. Weichselbaum, J. von Delft, A. Ludwig, A. D. Wieck, and S. Tarucha
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Journal Title
Applied Physics Letters
Volume: 113
Issue: 12
Pages: 1266011-5
DOI
Related Report
Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
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[Presentation] Transmission phase in the Kondo regime revealed in a two-path interferometer2014
Author(s)
S. Takada, C. Bäuerle, M. Yamamoto, K. Watanabe, S. Hermelin, T. Meunier, A. Alex, A. Weichselbaum, J. von Delft, A. D. Wieck, S. Tarucha
Organizer
27th International Conference on Low Temperature Physics (LT27)
Place of Presentation
Buenos Aires, Argentina
Year and Date
2014-08-12
Related Report
Int'l Joint Research
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