Mechanical $Q$-factor Measurement of a Quartz Oscillator at Cryogenic Temperature
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概要
- 論文の詳細を見る
By cooling a small macroscopic object with high mechanical quality, we can realize an ``ideal'' harmonic oscillator that has quite low intrinsic dissipation, showing extremely small thermal noise. Although a micromechanical system rarely has a high $Q$-factor, we have succeeded to observe $Q\sim 5\times 10^{6}$, using a tuning-fork-type quartz-crystal resonator of sub-mg scale; this value is quite high compared with that of other systems. Regarding such a mechanical oscillator, we discuss the quantum behavior of a macromechanical system coupled to laser light.
- Japan Society of Applied Physicsの論文
- 2008-07-25
著者
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Mori Takumi
Department Of Advanced Materials Science University Of Tokyo
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Moriwaki Shigenori
Department Of Advanced Materials Science University Of Tokyo
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Moriwaki Shigenori
Department Of Advanced Material Science The University Of Tokyo
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Mio Norikatsu
Department Of Advanced Material Science The University Of Tokyo
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