Reconnections of quantized vortex rings in superfluid 4He at very low temperatures.
Reconnections of quantized vortex rings in superfluid 4He at very low temperatures.
复制标题
极低温度下超流体 4He 中量子化涡环的重新连接。
DOI：
10.1103/physrevlett.113.125302
复制
发表时间：
2014
影响因子：
8.6
通讯作者：
Walmsley PM
中科院分区：
文献类型：
--
作者：
Walmsley PM
本文用飞行时间谱研究了零温极限（0.05K）下近等半径单向量子化涡旋环束流的碰撞。两个主环之间的重新连接导致较小和较大半径的二次涡环。离散步骤的飞行时间的分布，由于在一个或两个连续的重新连接后创建的二级循环的最早可能的到达时间的限制，观察。初生环的密度在与注入密度无关的数值上有上限。这是由于环之间的碰撞导致许多其他涡环的堆积。这两种观察结果在数量上都与我们的理论相一致。
Collisions in a beam of unidirectional quantized vortex rings of nearly identical radiiin superfluidin the limit of zero temperature (0.05 K) were studied using time-of-flight spectroscopy. Reconnections between two primary rings result in secondary vortex loops of both smaller and larger radii. Discrete steps in the distribution of flight times, due to the limits on the earliest possible arrival times of secondary loops created after either one or two consecutive reconnections, are observed. The density of primary rings was found to be capped at the valueindependent of the injected density. This is due to collisions between rings causing the piling up of many other vortex rings. Both observations are in quantitative agreement with our theory.
第一章：氦 II 中涡旋的结构、分布和动力学
DOI：
10.1016/s0079-6417(08)60013-x
发表时间：
1986
期刊：
Progress in low temperature physics
影响因子：
--
作者：
W. Glaberson;R. Donnelly
通讯作者：
R. Donnelly
DOI：
--
发表时间：
2006
期刊：
--
影响因子：
--
作者：
Iroon Polytechniou-
通讯作者：
Iroon Polytechniou-