摘要
建立了一套用于玻色-爱因斯坦凝聚实验的铷原子双磁光阱装置.从低速强源中获得慢原子束,向超高真空磁光阱进行原子转移.低速强源磁光阱与超高真空磁光阱之间可维持3个量级的压强差,超高真空磁光阱的真空度最高可达1×10-9Pa.慢原子束的束流通量达1×109/s.约4×108个87Rb原子被装载到超高真空磁光阱中.还讨论了两种典型情况下磁光阱中装载的最大原子数.
A rubidium double magneto-optical trap（MOT） system for Bose-Einstein condensation experiments has been set up. A slow atomic beam has been obtained with a low-velocity intense source （LVIS） and used to transfer atoms into an ultra-high-vacuum （UHV） MOT. By maintaining a pressure difference of 3 orders between LVIS-MOT and UHV-MOT, a lowest pressure of 1 × 10^-9Pa can be achieved in UHV-MOT. The flux of the slow atomic beam is 1 × 10^9/s. About 4 × 10^887 Rb atoms can be loaded into UHV-MOT. In this paper, maximum number of atoms captured in MOTs under two typical conditions have also been discussed.
出处
《物理学报》
SCIE
EI
CAS
CSCD
北大核心
2007年第1期165-169,共5页
Acta Physica Sinica
基金
国家自然科学基金(批准号:10334050)
国家重点基础研究发展计划项目(批准号:2001CB309307)资助的课题~~
关键词
低速强源
慢原子束
超高真空磁光阱
low-velocity intense source, slow atomic beam, ultra-high-vacuum magneto-optical trap
