An Envelope Soliton in a Nonlinear Chain with the Power-Law Dependence of Long-Range Interaction
WANG Deng-Long1,2, YAN Xiao-Hong1, TANG Yi1
1Faculty of Material and Photoelectronic Physics, Xiangtan University, Xiangtan 411105
2Institute of Mechanics and Material Engineering, Xiangtan University, Xiangtan 411105
An Envelope Soliton in a Nonlinear Chain with the Power-Law Dependence of Long-Range Interaction
WANG Deng-Long1,2;YAN Xiao-Hong1;TANG Yi1
1Faculty of Material and Photoelectronic Physics, Xiangtan University, Xiangtan 411105
2Institute of Mechanics and Material Engineering, Xiangtan University, Xiangtan 411105
Abstract： We study the Fermi-Pasta-Ulam lattice model in the presence of a power-law dependence of long-range interaction by virtue of the method of multiple scales. Our results show that an envelope soliton still appears, but it is of different property for the group velocity compared with that of the soliton in the model when long-range interaction is absent.
WANG Deng-Long;YAN Xiao-Hong;TANG Yi. An Envelope Soliton in a Nonlinear Chain with the Power-Law Dependence of Long-Range Interaction[J]. 中国物理快报, 2003, 20(4): 554-556.
WANG Deng-Long, YAN Xiao-Hong, TANG Yi. An Envelope Soliton in a Nonlinear Chain with the Power-Law Dependence of Long-Range Interaction. Chin. Phys. Lett., 2003, 20(4): 554-556.
2003, Vol. 20 
