The Onset of Vortex Production by a Vibrating Wire in Superfluid 3He-B

被引：7

作者：

Bradley, D. I. ^{[1
]}

Fisher, S. N. ^{[1
]}

Ganshin, A. ^{[1
]}

Guenault, A. M. ^{[1
]}

Haley, R. P. ^{[1
]}

Jackson, M. J. ^{[1
]}

Pickett, G. R. ^{[1
]}

Tsepelin, V. ^{[1
]}

机构：

[1] Univ Lancaster, Dept Phys, Lancaster LA1 4HP, England

来源：

JOURNAL OF LOW TEMPERATURE PHYSICS | 2013年 / 171卷 / 5-6期

基金：

英国工程与自然科学研究理事会; 美国国家科学基金会;

关键词：

Superfluid He-3; Vibrating wire resonator; Vortices; Critical velocity; LOW-TEMPERATURES; TURBULENCE; MODEL; TRANSITION; VELOCITY; HELIUM; LIMIT; HEAT;

D O I：

10.1007/s10909-012-0690-8

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We present measurements of the force-velocity response of a vibrating wire resonator in superfluid He-3-B at very low temperatures. At low velocities the response is dominated by intrinsic (vacuum) damping whilst at high velocities it is dominated by pair-breaking. At intermediate velocities there is a series of small plateaus where the velocity often shows small oscillations. We believe that the behaviour results from the stretching of vortices pinned to the wire. The vortices grow and self-reconnect, emitting a vortex ring. The behaviour is very sensitive to the presence of surrounding vortices generated by a neighbouring vibrating wire.

引用

页码：582 / 588

页数：7

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