摘要
Single caesium atoms in a large-magnetic-gradient vapour-cell magneto-optical trap have been identified. The trapping of individual atoms is marked by the steps in fluorescence signal corresponding to the capture or loss of single atoms. The typical magnetic gradient is about 29 mT/cm, which evidently reduces the capture rate of magneto-optical trap.
Single caesium atoms in a large-magnetic-gradient vapour-cell magneto-optical trap have been identified. The trapping of individual atoms is marked by the steps in fluorescence signal corresponding to the capture or loss of single atoms. The typical magnetic gradient is about 29 mT/cm, which evidently reduces the capture rate of magneto-optical trap.
基金
Project supported by the National Natural Science Foundation of China (Grant Nos 60578018 and 10434080)
the State Key Research Program of China (Grant No 2006CB921102)
the Program for New Century Excellent Talents of the Education Ministry, China (Grant No NCET-07-0524)
the Specialized Research Fund for the Doctoral Program of China (Grant No 20070108003)
the Natural Science Foundation of Shanxi Province, China (Grant No 2007011003)
