Measurement of Turbulence in Superfluid 3He-B

被引：0
作者：
A.P. Finne
S. Boldarev
V.B. Eltsov
M. Krusius
机构：
[1] Helsinki University of Technology,Low Temperature Laboratory
[2] Kapitza Institute for Physical Problems,undefined
[3] 119334,undefined
来源：
Journal of Low Temperature Physics | 2004年 / 136卷
关键词：
Spectroscopy; Vortex; Vorticity; Experimental Investigation; Magnetic Material;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The experimental investigation of superfluid turbulence in 3He-B is generally not possible with the techniques which have been developed for 4He-II. We describe a new method by which a transient burst of turbulent vortex expansion can be generated in 3He-B. It is based on the injection of a few vortex loops into rotating vortex-free flow. The time-dependent evolution of the quantized vorticity is then monitored with NMR spectroscopy. Using these techniques the transition between regular (i.e. vortex number conserving) and turbulent vortex dynamics can be recorded at T ∼ 0.6 Tc and a number of other characteristics of turbulence can be followed down to a temperature of T ≲ 0.4 Tc. PACS numbers: 47.37, 67.40, 67.57.
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页码：249 / 279
页数：30
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