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arXiv 1003.1126quant-phcond-mat.quant-gasphysics.atom-ph
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玻色-爱因斯坦凝聚体与微机械振子的共振耦合

Resonant coupling of a Bose-Einstein condensate to a micromechanical oscillator

D. Hunger, S. Camerer, T. W. Haensch, D. Koenig, J. P. Kotthaus, J. Reichel, P. Treutlein

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9 pages, 4 figures
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摘要：

我们报告的实验中，一个微机械振荡器的振动耦合到运动的玻色凝聚原子在一个陷阱。这种相互作用依赖于原子在离机械结构约一微米距离处所经受的表面力。我们观察到共振耦合到几个良好解决的机械模式的冷凝。通过表面力的耦合不需要磁铁、电极或振荡器上的镜子，因此可以用来将原子耦合到分子尺度的振荡器，如碳纳米管。

英文摘要：

We report experiments in which the vibrations of a micromechanical oscillator are coupled to the motion of Bose-condensed atoms in a trap. The interaction relies on surface forces experienced by the atoms at about one micrometer distance from the mechanical structure. We observe resonant coupling to several well-resolved mechanical modes of the condensate. Coupling via surface forces does not require magnets, electrodes, or mirrors on the oscillator and could thus be employed to couple atoms to molecular-scale oscillators such as carbon nanotubes.

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