Atom-membrane cooling and entanglement using cavity electromagnetically induced transparency
Atom-membrane cooling and entanglement using cavity electromagnetically induced transparency
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DOI：
10.1103/physreva.84.051801
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发表时间：
2011-11-14
影响因子：
2.9
通讯作者：
Dantan, Aurelien
中科院分区：
文献类型：
--
作者：
Genes, Claudiu;Ritsch, Helmut;Dantan, Aurelien
我们研究了一种混合光机械系统，该系统由作为可移动膜的微机械振荡器和光学腔内的原子三级系综组成。我们证明，通过原子介质中的电磁感应透明（EIT）进行适当定制的空腔场响应，可以将膜的机械振荡与集体原子基态自旋强耦合。即使腔宽度大于机械共振频率，这也有利于膜运动的基态冷却、量子态映射和稳健的原子膜纠缠。
We investigate a hybrid optomechanical system composed of a micromechanical oscillator as a movable membrane and an atomic three-level ensemble within an optical cavity. We show that a suitably tailored cavity field response via electromagnetically induced transparency (EIT) in the atomic medium allows for strong coupling of the membrane's mechanical oscillations to the collective atomic ground-state spin. This facilitates ground-state cooling of the membrane motion, quantum state mapping, and robust atom-membrane entanglement even for cavity widths larger than the mechanical resonance frequency.