A ring trap for ultracold atoms in an RF-dressed state
A ring trap for ultracold atoms in an RF-dressed state
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DOI：
10.1088/1367-2630/10/4/043012
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发表时间：
2008-04-10
影响因子：
3.3
通讯作者：
Foot, C. J.
中科院分区：
文献类型：
--
作者：
Heathcote, W. H.;Nugent, E.;Foot, C. J.
我们将射频修饰的磁阱与光学势相结合，产生了超冷（87）Rb原子的环形囚禁势。我们加载原子到这个环形陷阱从一个传统的磁阱，并比较测量的振荡频率与理论预测。这种制作环形陷波器的方法具有高度的灵活性，例如可调半径和可变的横向振荡频率。环阱是理想的创造一个多连接的玻色-爱因斯坦凝聚（BEC）和持久流的研究，我们提出了一个计划，引入流动的原子周围的环。
We combine an RF-dressed magnetic trap with an optical potential to produce a toroidal trapping potential for ultracold (87)Rb atoms. We load atoms into this ring trap from a conventional magnetic trap and compare the measured oscillation frequencies with theoretical predictions. This method of making a toroidal trap gives a high degree of flexibility such as a tuneable radius and variable transverse oscillation frequency. The ring trap is ideal for the creation of a multiply connected Bose-Einstein condensate (BEC) and the study of persistent flow and we propose a scheme for introducing a flow of the atoms around the ring.