Abstract 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.
Received: 08 December 2005
Revised: 05 June 2006
Accepted manuscript online:
Fund: Project supported by the Natural Science Foundation of Hunan Province, China (Grant Nos 04JJ3078 and 04JJ6029).
Cite this article:
Xia Qing-Lin(夏庆林), Yi Jian-Hong(易健宏), Peng Yuan-Dong(彭元东), Ye Tu-Ming(叶途明), Li Li-Ya(李丽娅), and Wang Hong-Zhong(王红忠) Evolution of soliton-like train in Klein--Gordon lattice system 2007 Chinese Physics 16 223
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