Analysis of Runaway Evaporation and Bose-Einstein Condensation by Time-of-Flight Absorption Imaging

CHEN Shuai; ZHOU Xiao-Ji; YANG Fan; XIA Lin; SUN Ya-Ya; WANG Yi-Qiu; CHEN Xu-Zong

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Analysis of Runaway Evaporation and Bose-Einstein Condensation by Time-of-Flight Absorption Imaging

机译：飞行时间吸收成像分析失控蒸发和玻色-爱因斯坦凝聚

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@@ The achievement of Bose-Einstein condensation (BEC) in our experiment is reported. The process of BEC formation is observed by detecting the image after free expansion, in which the effectiveness of runaway evaporative cooling is shown by measuring the optical density of the atom cloud. About 2 × 105 87Rb atoms in the |F =2, mF = 2> state are condensed into the condensate. The ratio of axial-to-radial size of the condensate released from the magnetic trap is investigated in theory and experiment.

机译：@@报道了我们实验中玻色-爱因斯坦凝聚（BEC）的成就。通过检测自由膨胀后的图像来观察BEC的形成过程，其中通过测量原子云的光密度来显示失控蒸发冷却的有效性。在| F = 2，mF = 2>的状态下，大约2×105 87Rb原子被冷凝成冷凝液。从理论和实验上研究了从磁阱释放的冷凝物的轴向尺寸与径向尺寸之比。

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《中国物理快报：英文版》 |2004年第11期|2105-2108|共4页
作者
CHEN Shuai; ZHOU Xiao-Ji; YANG Fan; XIA Lin; SUN Ya-Ya; WANG Yi-Qiu; CHEN Xu-Zong;
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作者单位

Key Laboratory for Quantum Information and Measurements of Ministry of Education,Peking University,Beijing 100871;

Department of Physics,School of Physics,Peking University,Beijing 100871;

Key Laboratory for Quantum Information and Measurements of Ministry of Education,Peking University,Beijing 100871;

School of Electronics Engineering and Computer Science,Peking University,Beijing 100871;

Key Laboratory for Quantum Information and Measurements of Ministry of Education,Peking University,Beijing 100871;

School of Electronics Engineering and Computer Science,Peking University,Beijing 100871;

Key Laboratory for Quantum Information and Measurements of Ministry of Education,Peking University,Beijing 100871;

School of Electronics Engineering and Computer Science,Peking University,Beijing 100871;

Key Laboratory for Quantum Information and Measurements of Ministry of Education,Peking University,Beijing 100871;

School of Electronics Engineering and Computer Science,Peking University,Beijing 100871;

Key Laboratory for Quantum Information and Measurements of Ministry of Education,Peking University,Beijing 100871;

School of Electronics Engineering and Computer Science,Peking University,Beijing 100871;

Key Laboratory for Quantum Information and Measurements of Ministry of Education,Peking University,Beijing 100871;

School of Electronics Engineering and Computer Science,Peking University,Beijing 100871;

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Analysis of Runaway Evaporation and Bose-Einstein Condensation by Time-of-Flight Absorption Imaging

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