Vortex formation in a stirred Bose-Einstein condensate
Vortex formation in a stirred Bose-Einstein condensate
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DOI：
10.1103/physrevlett.84.806
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发表时间：
2000-01-31
影响因子：
8.6
通讯作者：
Dalibard, J
中科院分区：
文献类型：
--
作者：
Madison, KW;Chevy, F;Dalibard, J
用聚焦激光束搅拌磁阱中Rb-87的玻色-爱因斯坦凝聚体，当搅拌频率超过临界值时，观察到涡旋的形成。在较大的旋转频率，我们产生的冷凝物的状态，其中多达四个漩涡同时存在。我们还测量了关闭搅拌激光束后单涡旋态的寿命。
Using a focused laser beam we stir a Bose-Einstein condensate of Rb-87 confined in a magnetic trap and observe the formation of a vortex for a stirring frequency exceeding a critical value. At larger rotation frequencies we produce states of the condensate for which up to four vortices are simultaneously present. We have also measured the lifetime of the single vortex state after turning off the stirring laser beam.