Entanglement generation of macro oscillator
Project/Area Number |
26800210
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Research Category |
Grant-in-Aid for Young Scientists (B)
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Allocation Type | Multi-year Fund |
Research Field |
Atomic/Molecular/Quantum electronics
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Research Institution | The University of Tokyo |
Principal Investigator |
Yamazaki Rekishu 東京大学, 先端科学技術研究センター, 助教 (00551409)
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Project Period (FY) |
2014-04-01 – 2016-03-31
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Project Status |
Completed (Fiscal Year 2015)
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Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2014: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
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Keywords | オプトメカニクス / エレクトロメカニクス / 強結合 / ハイブリッド量子系 / 量子操作 / 量子ハイブリッド系 |
Outline of Final Research Achievements |
We performed the experimental investigation towards the entanglement generation of macro oscillator. Using a stoichiometric silicon nitride membrane (Si3N4), with high quality factor of 1,000,000, as a mechanical oscillator, combining with electromagnetic resonators, we constructed optomechanical and electromechanical system. We performed series of experiments to control the state of membrane oscillator via electromagnetic wave. Laser cooling of the membrane, starting from 300K, to 50mK was observed with the optomechanical system. For the electromehcanical system, we cooled the oscillator down to the quantum ground state from the dilution temperature of 10mK. In the electromechanical system, we observed quantum strong coupling between the microwave resonator and the mechanical oscillator. We also observed the strong coupling between two mechanical modes through a parametric coupling via a common microwave resonator mode.
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Report
(3 results)
Research Products
(9 results)
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[Presentation] Opto-Electromechanical System as a Quantum Transducer2015
Author(s)
Rekishu Yamazaki, Atsushi Noguchi, Kenji Sato, Yutaka Tabuchi, Toyofumi Ishikawa, Koji Usami, Yasunobu Nakamura
Organizer
28th International Symposium on Superconductivity (ISS2015)
Place of Presentation
Tokyo, Japan
Year and Date
2015-11-16
Related Report
Int'l Joint Research / Invited
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