The mechanical behavior of a vibrating wire in superfluid3He-B in the ballistic limit
The mechanical behavior of a vibrating wire in superfluid3He-B in the ballistic limit
复制标题
超流体3He-B中振弦弹道极限的力学行为
DOI：
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发表时间：
1986
期刊：
影响因子：
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通讯作者：
G. Pickett
中科院分区：
文献类型：
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作者：
A. M. Guénault;V. Keith;C. Kennedy;S. Mussett;G. Pickett
本文描述了一个实验过程，用于表征温度低至120 μK时，非常小的振动线对液态氦的响应。在液体中的平均自由程和线的半径的相对尺度在结果的解释中起着重要的作用。结果表明，随着温度的降低，从流体动力学到弹道动力学的转变，同样的观点也适用于饱和~ 3 He-4 He溶液和超流~ 3 He-B。
An experimental procedure is described for the characterization of the response of very small vibrating wires to liquid3He at temperatures down to 120 µK. The relative scales of the mean free path in the liquid and the radius of the wire play a significant role in the interpretation of the results. It is shown that the same ideas concerning the transition from hydrodynamic to ballistic behavior as the temperature is reduced can be applied both to saturated3He-4He solutions and to superfluid3He-B.