Solitons in anharmonic chains with ultra-long-range interatomic interactions

被引：0

作者：

Mingaleev, Serge F. ^{[1
]}

Gaididei, Yuri B. ^{[1
]}

Mertens, Franz G. ^{[2
]}

机构：

[1] Bogolyubov Institute for Theoretical Physics, Kiev,03143, Ukraine

[2] Physikalisches Institut, Universität Bayreuth, Bayreuth,D-95440, Germany

来源：

Physical Review E - Statistical, Nonlinear, and Soft Matter Physics | 2000年 / 61卷 / 02期

关键词：

Chains;

D O I：

暂无

中图分类号：

TH13 [机械零件及传动装置];

学科分类号：

080203 ;

摘要：

We study the influence of long-range interatomic interactions on the properties of supersonic pulse solitons in anharmonic chains. We show that in the case of ultra-long-range (e.g., screened Coulomb) interactions three different types of pulse solitons coexist in a certain velocity interval: one type is unstable but the two others are stable. The high-energy stable soliton is broad and can be described in the quasicontinuum approximation. But the low-energy stable soliton consists of two components, short-range and long-range ones, and can be considered as a bound state of these components. ©2000 The American Physical Society.

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