Damped solitary waves on a superfluid vortex filament

被引：1
|
作者：
Mitra, A. [1 ]
Khan, M. [1 ]
Roychoudhury, R. [2 ]
机构：
[1] Jadavpur Univ, Ctr Plasmas Studies, Dept Instrumentat Sci, Kolkata 700032, India
[2] Visva Bharati Univ, Ctr Math Educ, Bolpur 731235, India
来源：
CHAOS SOLITONS & FRACTALS | 2018年 / 117卷
关键词：
COSMOLOGICAL EXPERIMENTS; SOLITONS; DRIVEN; STABILITY;
D O I：
10.1016/j.chaos.2018.10.024
中图分类号：
O1 [数学];
学科分类号：
0701 ; 070101 ;
摘要：
We have investigated the evolution of bright solitary wave (solitons) on a thin vortex filament under the action of time dependent damping in a superfluid at the zero temperature limit by exactly solving the damped-nonlinear Schrodinger equation (dNLSE). It is found that the dissipation of the wave amplitude depends on the functional form of the time dependency of the damping force. The damping rate is not constant but varies significantly with time. Comparison has been made between the characteristics of amplitude decay due a constant damping and a particular form of time dependent damping factor, both qualitatively and quantitatively. Stability of the solitary wave has also been studied in presence of such dissipation. (C) 2018 Elsevier Ltd. All rights reserved.
引用
收藏
页码：222 / 225
页数：4
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