通道函数的嵌入势定义
An embedding potential definition of channel functions
摘要：
我们表明，虚部的嵌入电位，广义对数导数，定义在电引线和一些导体之间的接口，具有正交的本征函数，定义的导电通道进出的铅。在无限扩展的界面的情况下，我们建立这些本征函数和Bloch状态之间的关系评估的接口。使用新的通道函数，一个众所周知的结果，通过导体系统的总传输简单地推导出来。
英文摘要：
We show that the imaginary part of the embedding potential, a generalised logarithmic derivative, defined over the interface between an electrical lead and some conductor, has orthogonal eigenfunctions which define conduction channels into and out of the lead. In the case of an infinitely extended interface we establish the relationship between these eigenfunctions and the Bloch states evaluated over the interface. Using the new channel functions, a well-known result for the total transmission through the conductor system is simply derived.
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