论文标题
用脉冲原子激光器测量陷阱频率测量
Trap Frequency Measurement with a Pulsed Atom Laser
论文作者
论文摘要
我们描述了一种新型的单发陷阱频率测量方法，用于限制的玻色网凝结物，该凝结物使用原子激光反复采样陷阱振荡的平均速度作为时间的函数。该方法能够在单个实验实现中确定陷阱频率的精度为39 〜ppm（16〜MHz），从而将文献提高了三倍。此外，我们表明，通过采用重建性混叠方法，我们的方法可以应用于捕获频率大于比采样频率大于3的倍数。
We describe a novel method of single-shot trap frequency measurement for a confined Bose-Einstein Condensate, which uses an atom laser to repeatedly sample the mean velocity of trap oscillations as a function of time. The method is able to determine the trap frequency to an accuracy of 39~ppm (16~mHz) in a single experimental realization, improving on the literature by a factor of three. Further, we show that by employing a reconstructive aliasing approach our method can be applied to trap frequencies more than a factor of 3 greater than the sampling frequency.
