Macroscopic mechanical oscillators at the quantum limit through optomechanical cooling
Macroscopic mechanical oscillators at the quantum limit through optomechanical cooling
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DOI：
10.1364/josab.20.001054
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发表时间：
2002-11
影响因子：
1.9
通讯作者：
D. Vitali;S. Mancini;L. Ribichini;P. Tombesi
中科院分区：
文献类型：
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作者：
D. Vitali;S. Mancini;L. Ribichini;P. Tombesi
我们讨论了利用辐射压力提供的光机耦合来冷却宏观集体自由度的方法，如可动镜的振动模。冷却是通过相敏反馈回路实现的，该回路在不增加热噪声的情况下有效地抑制了反射镜的运动。由此产生的反馈可以将宏观物体降低到量子极限。特别是，可以实现压缩和纠缠。
We discuss ways in which the optomechanical coupling provided by radiation pressure can be used to cool macroscopic collective degrees of freedom such as the vibrational modes of movable mirrors. Cooling is achieved with a phase-sensitive feedback loop that effectively overdamps a mirror’s motion without increasing the thermal noise. The feedback that results can bring macroscopic objects down to the quantum limit. In particular, it is possible to achieve squeezing and entanglement.