Study of quantum coherence in multiple system utilizing multi single-lead quantum dots
| Project/Area Number |
22810008
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| Research Category |
Grant-in-Aid for Research Activity Start-up
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| Allocation Type | Single-year Grants |
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| Research Field |
Nanostructural science
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| Research Institution | The University of Tokyo |
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Principal Investigator |
OTSUKA Tomohiro 東京大学, 大学院・工学系研究科, 研究員 (50588019)
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| Project Period (FY) |
2010 – 2011
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| Project Status |
Completed (Fiscal Year 2011)
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| Budget Amount *help |
¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2011: ¥1,365,000 (Direct Cost: ¥1,050,000、Indirect Cost: ¥315,000)
Fiscal Year 2010: ¥1,365,000 (Direct Cost: ¥1,050,000、Indirect Cost: ¥315,000)
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| Keywords | 量子ドット / 量子細線 / 量子ホール効果 / メゾスコピック系 / スピン偏極 / マイクロ・ナノデバイス / 量子エレクトロニクス |
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| Research Abstract |
We have demonstrated experiments relating multiple quantum systems utilizing semiconductor nano structures. We measured relaxation in quantum Hall edge states, which are important components of multiple quantum systems, with quantum point contacts and discussed about the relaxation mechanisms. We also developed a new method to detect local spin polarization in semiconductor nano structures, which is essential in spin related quantum systems, by using single-lead quantum dots and confirmed its operation. With this new method, we probed local spin polarization formed in quantum Hall edge states.
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Report
(3 results)
Research Products
(5 results)
