Dark and bright shock waves on oscillating backgrounds in a discrete nonlinear Schrodinger equation

被引：15
|
作者：
Konotop, VV [1 ]
Salerno, M [1 ]
机构：
[1] UNIV SALERNO,DEPT THEORET PHYS,I-84100 SALERNO,ITALY
来源：
PHYSICAL REVIEW E | 1997年 / 56卷 / 03期
关键词：
D O I：
10.1103/PhysRevE.56.3611
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：
Dark and bright shock waves on top of arbitrary oscillating backgrounds are investigated in a discrete version of the nonlinear Schrodinger equation. The existence of analytical curves in the parameter space corresponding to shock wave formation is established for arbitrary wave numbers k of the background radiation. The analysis is based on the small-amplitude approximation and is confirmed by direct numerical integrations of the system.
引用
收藏
页码：3611 / 3618
页数：8
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