非绝热区超冷原子的最佳输运
Optimal transport of ultracold atoms in the non-adiabatic regime
摘要：
本文研究了超冷原子在光镊作用下的非绝热输运，即在振荡周期量级的时间尺度上的输运。我们已经发现了一组离散的运输持续时间的运输是不伴随着任何激励的质量中心的云。我们表明，偶极模式的振荡的剩余振幅是由傅立叶变换的速度分布施加到陷阱的运输。这种形式主义导致一个简单的解释，我们的数据和简单的方法，优化被困粒子位移在非绝热制度。
英文摘要：
We report the transport of ultracold atoms with optical tweezers in the non-adiabatic regime, i.e. on a time scale on the order of the oscillation period. We have found a set of discrete transport durations for which the transport is not accompanied by any excitation of the centre of mass of the cloud. We show that the residual amplitude of oscillation of the dipole mode is given by the Fourier transform of the velocity profile imposed to the trap for the transport. This formalism leads to a simple interpretation of our data and simple methods for optimizing trapped particles displacement in the non-adiabatic regime.
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