利用一般传输矩阵方法 (Transfer matrix method)和耦合模传输矩阵方法 (Coupledmode transfer matrix method) ,分别计算了几种处于弹道区的非均匀边界形状量子线的电导 ,研究量子线通道相邻分段区域电子传输模式之间的耦合对电导的影响。结果表明 ,这种耦合对空腔结构量子线电子输运性质有重要影响 ,是研究非均匀边界形状量子线电导必须考虑的关键因素。 Using the transfer matrix method and the coupled matrix transfer matrix method, the conductances of several non-uniform boundary shape quantum wires in the ballistic region are calculated respectively. The relationship between the adjacent segment regions of the quantum wire channel Effect of coupling between electron transport modes on conductance. The results show that this kind of coupling has an important influence on the electron transport properties of the quantum wire of the cavity structure and is the key factor that must be considered in the study of the conductance of the quantum wire in the nonuniform boundary shape.