Envelope solitary waves and their reflection and transmission due to impurities in a granular material

• 来源期刊: 中国物理B（英文版）
• 关键词: impurities envelope solitary wave numerical simulation
• 年，卷（期）: 2018,（1）
• 页码范围: 407-412
• 页数: 6页
• 语种: 英文
• DOI: 10.1088/1674-1056/27/1/014501

摘要

A nonlinear Schr?dinger equation in one-dimensional bead chain is first obtained and an envelope solitary wave of the system is verified numerically in this system. The reflection and the transmission of an incident envelope solitary wave due to impurities has also been investigated. It is found that the magnitudes of both the reflection and the transmission not only depend on the characters of impurity materials, the wave number, the incident wave amplitude, but also on the impurity number. This can be used to detect the character and the number of the impurity materials in the bead chain by measuring the reflection and the transmission of an incident pulse.