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arXiv 2009.04421quant-ph
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光机电系统中射频LC电路到其基态的交感冷却

Sympathetic cooling of a radio-frequency LC circuit to its ground state in an optoelectromechanical system

Nicola Malossi, Paolo Piergentili, Jie Li, Enrico Serra, Riccardo Natali, Giovanni Di Giuseppe, David Vitali

摘要:

我们提出了一个完整的理论,激光冷却的宏观射频LC电路的光机电系统的装置,包括一个光学腔色散耦合到一个nanomechanical振荡器,这又是电容耦合到感兴趣的LC电路。我们确定的最佳参数制度,LC谐振器可以冷却到其量子基态,这需要一个大的光机械协同,和一个更大的机电协同。此外,为了达到量子基态,可比较的光机械和机电耦合速率是优选的。

英文摘要:

We present a complete theory for laser cooling of a macroscopic radio-frequency LC electrical circuit by means of an optoelectromechanical system, consisting of an optical cavity dispersively coupled to a nanomechanical oscillator, which is in turn capacitively coupled to the LC circuit of interest. We determine the optimal parameter regime where the LC resonator can be cooled down to its quantum ground state, which requires a large optomechanical cooperativity, and a larger electromechanical cooperativity. Moreover, comparable optomechanical and electromechanical coupling rates are preferable for reaching the quantum ground state.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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