Chinese Optics Letters, 2011, 9 (4): 040201, Published Online: Apr. 15, 2011
Proposal of a dual-ball atomic fountain clock 
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原子喷泉钟 激光冷却 频率稳定度 阿兰方差 020.1335 Atom optics 020.7010 Laser trapping 120.3930 Metrological instrumentation
Abstract
A simple improved structure is designed to trap and launch two cold atomic balls vertically at the same time, which works like "two fountains", but is more compact since most components of the "two fountains" are shared. It is expected to improve the stability of the fountain markedly.
Chunyan Shi, Rong Wei, Zichao Zhou, Tang Li, Yuzhu Wang. Proposal of a dual-ball atomic fountain clock[J]. Chinese Optics Letters, 2011, 9(4): 040201.
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