Transfer of Bose–Einstein Condensates from Quadrupole-Ioffe-configuration Magnetic Trap to Crossed-beam Optical Trap
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- KUWAMOTO Takeshi
- Institute of Quantum Science, Nihon University
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- SHIBAYAMA Hitoshi
- Department of Liberal Arts and Basic Sciences, College of Industrial Technology, Nihon University
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Abstract
<p>We studied the transfer of 87Rb Bose–Einstein condensates prepared in a quadrupole-Ioffe-configuration (QUIC) magnetic trap to a far-detuned crossed-beam optical trap. The condensates could not be effectively transferred by merely switching the QUIC trap off after superposing the optical trap beams onto magnetically trapped condensates. This was attributed to the transient magnetic field generated by eddy currents, which were induced by the switching-off of the QUIC trap. We suppressed this transient field by applying a magnetic pulse field that was synchronized with the switching-off of the QUIC trap, thereby achieving the efficient transfer of condensates to the optical trap. The transfer rate was estimated to be approximately 70%, and the 1/e lifetime of the optical trap was measured to be 3.1 ± 0.2 s.</p>
Journal
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- Journal of Research Institute of Science and Technology, College of Science and Technology, Nihon University
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Journal of Research Institute of Science and Technology, College of Science and Technology, Nihon University 2021 (150), 150_1-150_6, 2021-10-31
Nihon University Research Institute of Science and Technology
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Details 詳細情報について
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- CRID
- 1390572112191487104
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- NII Article ID
- 130008139825
- 40022772613
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- NII Book ID
- AA12464241
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- ISSN
- 21854181
- 18848702
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- NDL BIB ID
- 031869924
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- CiNii Articles
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- Abstract License Flag
- Disallowed