Cryogenic ion trapping systems with surface-electrode traps

被引:34
作者
Antohi, P. B. [1 ]
Schuster, D. [2 ]
Akselrod, G. M. [1 ]
Labaziewicz, J. [1 ]
Ge, Y. [1 ]
Lin, Z. [1 ]
Bakr, W. S. [3 ]
Chuang, I. L. [1 ]
机构
[1] MIT, Dept Phys, Ctr Ultracold Atoms, Cambridge, MA 02139 USA
[2] Yale Univ, Dept Appl Phys, New Haven, CT 06511 USA
[3] Harvard Univ, Dept Phys, Ctr Ultracold Atoms, Cambridge, MA 02138 USA
基金
美国国家科学基金会;
关键词
cryogenics; cryostats; particle traps; positive ions; strontium; LINEAR PAUL TRAP; QUANTUM COMPUTATION; HELICAL RESONATOR; LASER-ABLATION; SPECTROSCOPY; ARCHITECTURE; DECOHERENCE;
D O I
10.1063/1.3058605
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
We present two simple cryogenic rf ion trap systems in which cryogenic temperatures and ultra high vacuum pressures can be reached in as little as 12 h. The ion traps are operated either in a liquid helium bath cryostat or in a low vibration closed cycle cryostat. The fast turn around time and availability of buffer gas cooling made the systems ideal for testing surface-electrode ion traps. The vibration amplitude of the closed cycled cryostat was found to be below 106 nm. We evaluated the systems by loading surface-electrode ion traps with Sr-88(+) ions using laser ablation, which is compatible with the cryogenic environment. Using Doppler cooling we observed small ion crystals in which optically resolved ions have a trapped lifetime over 2500 min.
引用
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页数:9
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