期刊
PHYSICAL REVIEW A
卷 93, 期 4, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.93.043403
关键词
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资金
- NSF [PHY-1306647]
- AFOSR Grant [FA 9550-15-1-0220]
- ARO MURI Grant [W911NF-12-1-0476]
- Direct For Mathematical & Physical Scien
- Division Of Physics [1306647] Funding Source: National Science Foundation
We report on a general method for the rapid production of quantum degenerate gases. Using Yb-174, we achieve an experimental cycle time as low as 1.6-1.8 s for the production of Bose-Einstein condensates (BECs) of (0.5-1) x 10(5) atoms. While laser cooling to 30 mu K proceeds in a standard way, evaporative cooling is highly optimized by performing it in an optical trap that is dynamically shaped by utilizing the time-averaged potential of a single laser beam moving rapidly in one dimension. We also produce large (> 10(6)) atom number BECs and successfully model the evaporation dynamics over more than three orders of magnitude in phase space density. Our method provides a simple and general approach to solving the problem of long production times of quantum degenerate gases.
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