Observation of macroscopic quantum state using cryogenic oscilator
| Project/Area Number |
26600110
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Optical engineering, Photon science
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| Research Institution | The University of Tokyo |
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Principal Investigator |
Ando Masaki 東京大学, 大学院理学系研究科(理学部), 准教授 (90313197)
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| Research Collaborator |
MATSUMOTO Nobuyuki
KOMORI Kentaro
MICHIMURA Yuta
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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 |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2015: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2014: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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| Keywords | 量子雑音 / 量子 / 巨視的振動子 / 量子的性質 / 巨視的物体 / 冷却 / 振動子 / 基底状態 |
|---|
| Outline of Final Research Achievements |
The purpose of this research is to investigate quantum behavior in a macroscopic scale. In a microscopic scale, like a scale of atom or molecule, quantum mechanics can be used to describe physics. In the other hand, it is not valid in a macroscopic scale any more. The transition from micro to macro may be a key issue for expansion of quantum mechanics.
As a result of this research, we made achievements in two topics. One is a development of a remote cooling scheme. In a small mirror, we cannot attach an actuator on it. So we actuate the mirror by optical spring (radiation pressure) of a laser beam. Another achievement is detailed design of experimental setup for direct measurement of quantum radiation pressure noise of a laser beam, using a small torsion pendulum. We already started the assembly of the setup.
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Report
(4 results)
Research Products
(34 results)
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[Presentation] DECIGO / DPF2015
Author(s)
安東 正樹
Organizer
CRC将来計画タウンミーティング
Place of Presentation
東京大学宇宙線研究所(千葉)
Year and Date
2015-01-24
Related Report
Invited
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[Presentation] DECIGO/DPF2014
Author(s)
安東 正樹
Organizer
CRCタウンミーティング
Place of Presentation
名古屋大学 (愛知)
Year and Date
2014-07-12
Related Report
Invited
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