Lattice Model with Traveling Compactons
XIA Qing-Lin;JIANG Dong-Chu
【期刊名称】《理论物理通讯（英文版）》 【年(卷),期】2004(042)008
【摘要】We introduce a purely anharmonic lattice model with specific double-well on-site potential, which admits traveling compacton-like solitary wave solutions by the inverse method with the help of Mathematica. By properly choosing the shape of the solitary wave solution of the system, we can calculate the parameters of the specific on-site potential. We also found that the localization of the compacton is related to the nonlinear coupling parameter Cnl and the potential parameter V0 of the on-site potential, and the velocity of the propagation of the compacton is determined by the localization parameter q and the potential parameter V0. Numerical calculation results demonstrate that the narrow compacton is unstable while the wide compacton is stable when they move along the lattice chain. 【总页数】4页(295-298)
【关键词】anharmonic lattice model;inverse method;compacton 【作者】XIA Qing-Lin;JIANG Dong-Chu
【作者单位】School of Physics Science and Technology and State Key Laboratory for Powder Metallurgy, Central South University, Changsha 410083, China;Department of Physics and Electronic Science, Hunan City
Lattice Model with Traveling Compactons
