Dual Function of Single Electron Transistor Coupled with Double Quantum Dot: Gating and Charge Sensing
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概要
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We demonstrate gating and charge sensing functions of a lithographically defined single electron transistor (SET). The electrochemical potential of the SET is modulated by applying a voltage to both the source and drain electrodes. The SET integrated with a double quantum dot (DQD) works as a gate electrode for the DQD. Charge transitions in the DQD are detected by the SET through its charge sensing function. This dual function of the SET is useful for saving space in crowded devices with many gates and charge sensors, toward the integration of multiqubits for quantum computation.
- 2013-04-25
著者
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Arakawa Yasuhiko
Institute For Nano Quantum Information Electronics (nanoquine) The University Of Tokyo
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Kodera Tetsuo
Quantum Nanoelectronics Research Center (QNERC), Tokyo Institute of Technology, Meguro, Tokyo 152-8550, Japan
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Kambara Tomohiro
Quantum Nanoelectronics Research Center, Tokyo Institute of Technology, Meguro, Tokyo 152-8552, Japan
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Oda Shunri
Quantum Nanoelectronics Research Center (QNERC), Tokyo Institute of Technology, Meguro, Tokyo 152-8550, Japan
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