Exactly solvable models of nonstationary turbulence in Bose condensate

被引：0
|
作者：
Kuzmin, P. [1 ]
机构：
[1] Moscow MV Lomonosov State Univ, Dept Phys, Moscow 119992, Russia
来源：
PHYSICS LETTERS A | 2008年 / 372卷 / 12期
关键词：
quantum turbulence; master equation; nonstationary decay;
D O I：
10.1016/j.physleta.2007.11.005
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
In this Letter we study a turbulence decay mechanism in the superfluid liquid. We proceed with developement of master equation approach introduced Copeland, Kibble, Steer and Nemirovskii. We obtain the full rate of reconnection in presence of normal component. We also discuss different random-walk models of vortex filaments. We obtain the expression for the reconnection rate in the nonstationary vortex tangle for these models. The equation for the full number of vortex loops is derived. We also obtain the expression for the relaxation time. (c) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码：2123 / 2126
页数：4
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