Liquid 4He and its superfluidity

被引：0

作者：

Griffiths, OJ ^{[1
]}

Hendry, R ^{[1
]}

McClintock, PVE ^{[1
]}

Nichol, HA ^{[1
]}

机构：

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

来源：

PATTERNS OF SYMMETRY BREAKING | 2003年 / 127卷

关键词：

helium; He-4; phase transition; superfluidity; quantized vortices; pattern formation;

D O I：

暂无

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The properties of liquid 4 He, and the present understanding of its superfluidity, are reviewed. Brief accounts are given of its main physical properties, the 2-fluid model, the Landau excitation model, quantized vortex lines, and critical velocities and their origins. Two experiments in progress on vortex creation and decay are discussed in more detail: an attempt to carry out Zurek's experiment, using the superfluid transition to model the GUT symmetry-breaking transition of the early universe; and an exploratory investigation of quantized turbulence in the mechanical vacuum below 50 mK.

引用

页码：37 / 82

页数：46

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