Vortex shedding and drag in dilute Bose-Einstein condensates

被引：70
作者：
Winiecki, T
Jackson, B
McCann, JF
Adams, CS
机构：
[1] Univ Durham, Dept Phys, Durham DH1 3LE, England
[2] Queens Univ Belfast, Dept Appl Math & Theoret Phys, Belfast BT7 1NN, Antrim, North Ireland
来源：
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 2000年 / 33卷 / 19期
关键词：
D O I：
10.1088/0953-4075/33/19/317
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Above a critical velocity, the dominant mechanism of energy transfer between a moving object and a dilute Bose-Einstein condensate is vortex formation. In this paper, we discuss the critical velocity for vortex formation and the link between vortex shedding and drag in both homogeneous and inhomogeneous condensates. We find that at supersonic velocities sound radiation also contributes significantly to the drag force.
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收藏
页码：4069 / 4078
页数：10
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