期刊
PHYSICAL REVIEW LETTERS
卷 119, 期 22, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.119.223202
关键词
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资金
- Netherlands Organisation for Scientific Research (NWO) through Vici [680-47-619]
- European Research Council (ERC) under the European Union's Seventh Framework Programme [615117 QuantStro]
- NWO through Veni [680-47-438]
- Ministry of Education of the Republic of China (Taiwan)
- Australian Government
- Nick Robins at the Australian National University
We demonstrate a continuously loaded Sr-88 magneto-optical trap (MOT) with a steady-state phase-space density of 1.3(2) x 10(-3). This is 2 orders of magnitude higher than reported in previous steady-state MOTs. Our approach is to flow atoms through a series of spatially separated laser cooling stages before capturing them in a MOT operated on the 7.4-kHz linewidth Sr intercombination line using a hybrid slower + MOT configuration. We also demonstrate producing a Bose-Einstein condensate at the MOT location, despite the presence of laser cooling light on resonance with the 30-MHz linewidth transition used to initially slow atoms in a separate chamber. Our steady-state high phase-space density MOT is an excellent starting point for a continuous atom laser and dead-time free atom interferometers or clocks.
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