Dynamics of vortex loops after reconnection in superfluid helium at different temperatures

被引：6

作者：

Andryushchenko, V. A. ^{[1
]}

Kondaurova, L. P. ^{[2
]}

机构：

[1] SB RAS, Kutateladze Inst Thermophys, Prospekt Akad Lavrentyeva 1, Novosibirsk, Novosibirskaya, Russia

[2] Novosibirsk State Univ, Pirogova St 1, Novosibirsk 630090, Russia

来源：

LOW TEMPERATURE PHYSICS | 2018年 / 44卷 / 10期

基金：

俄罗斯科学基金会;

关键词：

QUANTIZED VORTICES; HE-4;

D O I：

10.1063/1.5055838

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

This work addresses the numerical modeling of vortex loops in superfluid helium after loop reconnection at various temperatures. Modeling was conducted within the vortex filament method using the full Biot-Savart equation. It was found that the dynamics of vortex loops substantially depend on the initial position of the loops, and that temperature affects the number and size of the formed loops, the amplitude of the Kelvin waves and their decay behavior as well as the velocity of motion of the loops and their separate elements. The time dependence of the distance between the nearest elements of the emergent vortex loop is described by the power law, with the power of 1/2 before and after reconnection. Published by AIP Publishing.

引用

页码：1020 / 1024

页数：5