ATOMIC AND MOLECULAR PHYSICS |
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High-Performance Sodium Bose–Einstein Condensate Apparatus with a Hybrid Trap and Long-Distance Magnetic Transfer |
ZHANG Feng, LONG Yun, YANG Jiang-Ling, MA Guo-Qiang, YIN Ji-Ping, WANG Ru-Quan** |
Institute of Physics, Chinese Academy of Sciences, Beijing 100190
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Cite this article: |
ZHANG Feng, LONG Yun, YANG Jiang-Ling et al 2015 Chin. Phys. Lett. 32 123701 |
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Abstract We report on the production of large sodium Bose–Einstein condensates in a hybrid of magnetic quadrupole and optical dipole trap. With an optimized spin-flip Zeeman slower, 2×1010 sodium atoms are captured in the magneto-optical trap (MOT). A long distance magnetic transfer setup moves the cold atom over 46 cm from the MOT chamber to the UHV science chamber, which provides great optical access and long conservative trap lifetime. After evaporative cooling in the hybrid trap, we produce nearly pure condensates of 1×107 atoms with lifetime of 80 s in the optical dipole trap.
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Received: 08 October 2015
Published: 05 January 2016
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PACS: |
37.10.De
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(Atom cooling methods)
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37.10.Gh
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(Atom traps and guides)
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67.85.Hj
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(Bose-Einstein condensates in optical potentials)
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Abstract
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