Cooling a micromechanical beam by coupling it to a transmission line

被引：58
|
作者：
Xue, Fei [1 ]
Wang, Y. D.
Liu, Yu-xi
Nori, Franco
机构：
[1] Japan Sci & Technol Agcy, CREST, Kawaguchi, Saitama 3320012, Japan
[2] RIKEN, Frontier Res Syst, Wako, Saitama 3510198, Japan
[3] NTT Corp, Basic Res Labs, Atsugi, Kanagawa 2430198, Japan
[4] Univ Michigan, Dept Phys, Ctr Theoret Phys, Ann Arbor, MI 48109 USA
[5] Univ Michigan, Ctr Study Complex Syst, Ann Arbor, MI 48109 USA
来源：
PHYSICAL REVIEW B | 2007年 / 76卷 / 20期
关键词：
D O I：
10.1103/PhysRevB.76.205302
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We study a method to cool down the vibration mode of a micromechanical beam using a capacitively coupled superconducting transmission line. The Coulomb force between the transmission line and the beam is determined by the driving microwave on the transmission line and the displacement of the beam. When the frequency of the driving microwave is smaller than that of the transmission line resonator, the Coulomb force can oppose the velocity of the beam. Thus, the beam can be cooled. This mechanism, which may enable us to prepare the beam in its quantum ground state of vibration, is feasible under current experimental conditions.
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页数：6
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