Quantum Statistics of Three-Dimensional Vortex Filament in Superfluid 4He

被引：0
|
作者：
Makoto Tsubota
Yukinori Yasui
Waichi Ogura
机构：
[1] Osaka City University,Department of Physics
[2] Osaka University,Department of Physics
来源：
Journal of Low Temperature Physics | 1998年 / 113卷
关键词：
Vortex; Free Energy; Magnetic Material; Quantum Statistic; Saddle Point;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The quantum statistics of three-dimensional vortex filament in superfluid4He is investigated by the use of path integral techniques. The free energy evaluated in the saddle point approximation decreases abruptly at a certain critical value of the applied superflow velocity. This critical behavior is in quantitative agreement with the experimental result of vortex nucleation by a moving ion. The dissipation effects are also discussed within the damped harmonic oscillator approximation.
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页码：609 / 614
页数：5
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