A ring trap for ultracold atoms in an RF-dressed state

被引：79

作者：

Heathcote, W. H. ^{[1
]}

Nugent, E. ^{[1
]}

Sheard, B. T. ^{[1
]}

Foot, C. J. ^{[1
]}

机构：

[1] Univ Oxford, Dept Phys, Clarendon Lab, Oxford OX1 3PU, England

来源：

NEW JOURNAL OF PHYSICS | 2008年 / 10卷

基金：

英国工程与自然科学研究理事会;

关键词：

D O I：

10.1088/1367-2630/10/4/043012

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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.

引用

页数：11

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