Evolution of soliton-like train in Klein-Gordon lattice system

• 来源期刊: 中国物理（英文版）
• 关键词: Klein-Gordon lattice system soliton-like train numerical calculation
• 年，卷（期）: 2007,（1）
• 页码范围: 223-227
• 页数: 5页
• 语种: 英文

摘要

This paper studies the evolution of wave in the system of a pure anharmonic lattice with a double well on-site potential by numerical calculation. It finds that an initial distribution of static or moving wave can evolve into two travelling soliton-like trains with contrary directions and a region of oscillation in this lattice system. It presents that some cases with cosine-square-shape and Gaussian-shape initial distribution of static or moving wave will produce ordered soliton-like train. Careful numerical observation shows that the centre oscillation region in this system may act as a resource of generating soliton-like train.