摘要
孤子在聚乙炔链中的运动可用多声子理论来讨论,在此基础上,引进了耦合坐标 y,使其化成单自由度问题。求得了聚乙炔链中孤子的有效质量为5m_(?),得到了孤子运动跃迁势垒 w_λ(y),并讨论了它与电子晶格耦合参数λ的关系。
Soliton hopping in polyacetylene has been studied with many-phonon
theory.By introducing the coupling coordinatey,soliton is thought as an
“effective particle”with mass m_s,moving in a periodic potential W_λ(y).
It is shown that m_s=5m_(?) and the potential W_λ(y) depends on the coupling
parameter λ very sensitively.It is predicted that soliton may exist in
located state at larger value of λ.
出处
《山东大学学报（理学版）》
CAS
CSCD
1989年第4期44-50,共7页
Journal of Shandong University(Natural Science)
关键词
聚乙炔
孤子
跃迁
polyacetylene
soliton
hop
