Experimental observation of a superfluid gyroscope in a dilute Bose-Einstein condensate

被引：26

作者：

Hodby, E ^{[1
]}

Hopkins, SA ^{[1
]}

Hechenblaikner, G ^{[1
]}

Smith, NL ^{[1
]}

Foot, CJ ^{[1
]}

机构：

[1] Univ Oxford, Dept Phys, Clarendon Lab, Oxford OX1 3PU, England

来源：

PHYSICAL REVIEW LETTERS | 2003年 / 91卷 / 09期

关键词：

D O I：

10.1103/PhysRevLett.91.090403

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have observed a three-dimensional gyroscopic effect associated with a vortex in a dilute Bose-Einstein condensed gas. A condensate with a vortex possesses a single quantum of circulation, and this causes the plane of oscillation of the scissors mode to precess around the vortex line. We have measured the precession rate of the scissors oscillation. From this we deduced the angular momentum associated with the vortex line and found a value close to h per particle, as predicted for a superfluid.

引用

页数：4

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