Exact discrete compactlike traveling kinks and pulses in φ4 nonlinear lattices -: art. no. 046619

被引：0
作者：
Comte, JC
机构：
[1] Univ Crete, Dept Phys, Iraklion 71003, Crete, Greece
[2] Fdn Res & Technol Hellas, Iraklion 71003, Crete, Greece
来源：
PHYSICAL REVIEW E | 2002年 / 65卷 / 04期
关键词：
D O I：
暂无
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：
We show that by properly choosing the analytical form of a solitary wave solution of discrete phi(4) models we can calculate the parameters of the potential which allow the propagation of compact (kink and pulses) solutions. Our numerical simulations show that narrow kinks and pulses with finite extent can propagate freely, and that discrete breathers with finite but long lifetime, can emerge from their collisions. Moreover, our numerical simulations reveal that the propagation of two successive pulses at a relative distance of two lattice spacings propagate freely, i.e., without interaction.
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