Does the Kibble mechanism operate in liquid 4He?

被引：7

作者：

Hendry, PC ^{[1
]}

Lawson, NS ^{[1
]}

McClintock, PVE ^{[1
]}

机构：

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

来源：

JOURNAL OF LOW TEMPERATURE PHYSICS | 2000年 / 119卷 / 3-4期

关键词：

D O I：

10.1023/A:1004688930111

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A rapid passage of liquid He-4 through the lambda (superfluid) transition is expected (W.H. Zureck, Nature 317, 505; 1985) to result in the production of topological defects (quantized vortices) through the Kibble mechanism, the same process that is believed to have produced cosmic strings at the GUT phase transition of the early universe. But recent experiments (Dodd et ak, Phys. Rev. Lett 81, 3703; 1998) show that the density of vortices created, if any, seems to be smaller than predicted by a factor of at least 100. Possible ways of improving the sensitivity of the experiment are discussed.

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页码：249 / 256

页数：8

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