Dissipationless flow and superfluidity in gaseous Bose-Einstein condensates

被引:35
|
作者
Raman, C [1 ]
Onofrio, R
Vogels, JM
Abo-Shaeer, JR
Ketterle, W
机构
[1] MIT, Dept Phys, Cambridge, MA 02139 USA
[2] MIT, Elect Res Lab, Cambridge, MA 02139 USA
基金
美国国家科学基金会; 美国国家航空航天局;
关键词
D O I
10.1023/A:1004864820016
中图分类号
O59 [应用物理学];
学科分类号
摘要
We study dissipation in a dilute Bose gas induced by the motion of a macro-scopic object. A blue-detuned laser beam focused on the center of a trapped gas of sodium atoms was scanned both above and below the BEC transition temperature. The measurements allow for a comparison between the heating rates for the superfluid and normal gas.
引用
收藏
页码:99 / 116
页数:18
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