论文标题
在光电机电系统中，射频LC电路的交感神经冷却至其基态
Sympathetic cooling of a radio-frequency LC circuit to its ground state in an optoelectromechanical system
论文作者
论文摘要
我们提出了一个完整的理论，该理论是通过光电力学系统的宏观射频LC电路进行激光冷却的完整理论，该系统由光腔分散耦合到纳米力学振荡器，与纳米力学振荡器耦合，这反过来又是电容与感兴趣的LC电路。我们确定可以将LC谐振器冷却至其量子基态的最佳参数状态，该量子基态需要较大的光学机械合作性和较大的机电协同作用。此外，可比较的光力学和机电耦合速率对于达到量子基态而言是优选的。
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.
