The evolution of a layer of electron vortices produced by the interaction of an intense laser pulse and plasma

被引：2
|
作者：
Venkatesan, SK [1 ]
Das, C [1 ]
Roychoudhury, R [1 ]
机构：
[1] INDIAN STAT INST, PHYS & APPL MATH UNIT, CALCUTTA 700035, W BENGAL, INDIA
来源：
PHYSICS OF PLASMAS | 1997年 / 4卷 / 08期
关键词：
D O I：
10.1063/1.872434
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
The instability of the large-scale motion of a thin layer of electron vortices produced by the interaction of intense laser pulse and a uniform plasma is studied here. The standard point vortex models and vortex sheet models of the flow field involve unphysical singularities in flow field, leading to ill-posed problems. To make the problem well posed a description in terms of vortex blobs is considered. If the vortex sheet has a smooth localized core then the linear growth rates rapidly decrease to zero at high wave numbers, thus providing a natural ultraviolet cutoff. Such a model can then be further used to study the development of small-scale inhomogeneity in the magnetic field produced by the ultraintense laser beam. (C) 1997 American Institute of Physics.
引用
收藏
页码：3001 / 3005
页数：5
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