论文标题
通过搅拌辅助能量转移$：$替代机械基态的替代路线，通过搅拌辅助能量转移来进行光学机械冷却
Optomechanical cooling by STIRAP-assisted energy transfer $:$ an alternative route towards the mechanical ground state
论文作者
论文摘要
标准的光力冷却方法理想情况下需要弱耦合和空腔阻尼率，这使运动边带能够得到很好的解决。如果耦合太大，则边带分辨冷却不稳定，或者旋转波近似可能无效。在这项工作中，我们描述了一种在光学腔中冷却与驱动的光学模式的机械谐振器的协议，该腔体在另一个辅助光学腔中也与光学模式耦合，并且两个腔均经过频率调节。我们表明，通过调节驱动器的幅度，可以执行从机械模式到有损辅助光学模式的职业转移类型的转移，从而导致机械模式冷却。我们展示了该协议如何在各种方案（例如强耦合和未解决的边带极限）中胜过普通的光学机电边带冷却。
Standard optomechanical cooling methods ideally require weak coupling and cavity damping rates which enable the motional sidebands to be well resolved. If the coupling is too large then sideband-resolved cooling is unstable or the rotating wave approximation can become invalid. In this work we describe a protocol to cool a mechanical resonator coupled to a driven optical mode in an optomechanical cavity, which is also coupled to an optical mode in another auxiliary optical cavity, and both the cavities are frequency-modulated. We show that by modulating the amplitude of the drive as well, one can execute a type of STIRAP transfer of occupation from the mechanical mode to the lossy auxiliary optical mode which results in cooling of the mechanical mode. We show how this protocol can outperform normal optomechanical sideband cooling in various regimes such as the strong coupling and the unresolved sideband limit.
