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玻色-爱因斯坦凝聚在中国科学院上海光机所实现
Alternative TitleRealization of bose-einstein condensation in siom of chinese academy of sciences
周蜀渝; 龙全; 周善钰; 付海翔; 王育竹
2002
Source Publication物理
Volume31Issue:8Pages:481
Abstract文章报道了在稀薄~(87)Rb原子气体中观察到的玻色-爱因斯坦凝聚(BEC)现象。在四极矩和Ioffe组合磁阱(QUIC)中装载了1 * 10~8个原子,经过19s蒸发冷却达到了相变条件。在高原子密度的情况下,文章作者观察到了BEC对探测光的衍射光环。这时降低磁阱势垒和绝热的入开冷原子样品,我们拍摄到冷原子和BEC的吸收像。根据数据拟合满足双高斯分布,表明发生了BEC相变。相变温度约215nK,凝聚的原子数约为5 * 10~4。
SubtypeArticle
Other AbstractWe report the observation of Bose-Einstein condensation in a dilute ~(87)Rb gas with 1 * 10~8 atoms loaded into a quadrupole-Ioffe-configuration trap. After 19s of evaporative cooling, the phase transition condition was achieved. At high phase-space density, diffraction of a probe laser beam was observed. After reducing the trap potential to adiabiatically relax the cold atoms we obtained absorption images. A double Gaussian distribution fitted to the data showed the BEC phase transition. The temperature of the transition was about 250 nK, and the number of condensate atoms about 5 * 10~4.
Funding Organization国家自然科学基金重点项目(批准号:19834060) ; 国家科技部973预研项目(批准号:95-预-34) ; 中国科学院重大方向性项目(批准号:KJCX2-W7-2) ; 国家自然科学基金重点项目(批准号:19834060) ; 国家科技部973预研项目(批准号:95-预-34) ; 中国科学院重大方向性项目(批准号:KJCX2-W7-2)
Indexed ByCSCD
Language中文
Funding Organization国家自然科学基金重点项目(批准号:19834060) ; 国家科技部973预研项目(批准号:95-预-34) ; 中国科学院重大方向性项目(批准号:KJCX2-W7-2) ; 国家自然科学基金重点项目(批准号:19834060) ; 国家科技部973预研项目(批准号:95-预-34) ; 中国科学院重大方向性项目(批准号:KJCX2-W7-2)
CSCD IDCSCD:1048182
Citation statistics
Document Type期刊论文
Version出版稿
Identifierhttp://ir.siom.ac.cn/handle/181231/17938
Collection量子光学重点实验室
Affiliation1.周蜀渝, 中国科学院上海光机所, 量子光学重点实验室, 上海 201800, 中国.
2.龙全, 中国科学院上海光机所, 量子光学重点实验室, 上海 201800, 中国.
3.周善钰, 中国科学院上海光机所, 量子光学重点实验室, 上海 201800, 中国.
4.付海翔, 中国科学院上海光机所, 量子光学重点实验室, 上海 201800, 中国.
5.王育竹, 中国科学院上海光机所, 量子光学重点实验室, 上海 201800, 中国.
Recommended Citation
GB/T 7714
周蜀渝,龙全,周善钰,等. 玻色-爱因斯坦凝聚在中国科学院上海光机所实现[J]. 物理,2002,31(8):481.
APA 周蜀渝,龙全,周善钰,付海翔,&王育竹.(2002).玻色-爱因斯坦凝聚在中国科学院上海光机所实现.物理,31(8),481.
MLA 周蜀渝,et al."玻色-爱因斯坦凝聚在中国科学院上海光机所实现".物理 31.8(2002):481.
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