2017 Fiscal Year Final Research Report
Control of single charge/and spin states using terahertz wave
Project/Area Number |
26706002
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Research Category |
Grant-in-Aid for Young Scientists (A)
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Allocation Type | Partial Multi-year Fund |
Research Field |
Nanostructural physics
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Research Institution | Tohoku Institute of Technology |
Principal Investigator |
Shibata Kenji 東北工業大学, 工学部, 准教授 (00436578)
|
Project Period (FY) |
2014-04-01 – 2017-03-31
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Keywords | テラヘルツ / 量子ドット / トランジスタ |
Outline of Final Research Achievements |
Electrical manipulation and read-out of quantum states in zero-dimensional quantum dots by nanogap metal electrodes is expected to bring about innovation in quantum information processing. In this study, we established a method for performing terahertz spectroscopy on single 10nm scale quantum dots by using nanogap metal electrodes. Inter-sublevel transition spectra of single quantum dots are successfully measures for the first time and the electron-electron interaction are discussed for a single quantum dot. We also succeeded in demonstrating the THz spectroscopy for single molecular transistors. These works are opening a way for novel quantum information applications on self-assembled QD systems.
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Free Research Field |
ナノエレクトロニクス
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