期刊
PHYSICAL REVIEW LETTERS
卷 123, 期 24, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.123.240402
关键词
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资金
- CNES (Centre National d'Etudes Spatiales) [ANR-17-ASTR-0025-01, ANR18-QUAN-00L5-02, ANR18-CE91-0003-01]
- l'Agence Nationale pour la Recherche [ANR-17-ASTR-0025-01, ANR18-QUAN-00L5-02, ANR18-CE91-0003-01]
- Delegation Generale de l'Armement [ANR-17-ASTR-0025-01, ANR18-QUAN-00L5-02, ANR18-CE91-0003-01]
- European Space Agency
- IFRAF (Institut Francilien de Recherche sur les Atomes Froids)
- action specifique GRAM (Gravitation, Relativite, Astronomie et Metrologie)
- CNES
- IOGS
- Conseil Regional d'Aquitaine
- Agence Nationale de la Recherche (ANR) [ANR-17-ASTR-0025] Funding Source: Agence Nationale de la Recherche (ANR)
We report on the all-optical production of Bose-Einstein condensates in microgravity using a combination of grey molasses cooling, light-shift engineering and optical trapping in a painted potential. Forced evaporative cooling in a 3-m high Einstein elevator results in 4 x 10(4) condensed atoms every 13.5 s, with a temperature as low as 35 nK. In this system, the atomic cloud can expand in weightlessness for up to 400 ms, paving the way for atom interferometry experiments with extended interrogation times and studies of ultracold matter physics at low energies on ground or in Space.
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