Electron transport in disordered quantum wires with a perfectly conducting channel

点击翻译按钮获取中文摘要

It has been pointed out that electrons in a disordered graphene nanoribbon with zigzag edges are free from Anderson localization due to the presence of a perfectly conducting channel without backward scattering. The purpose of this research is to clarify characteristic features of electron transport in this peculiar system. It is shown that the statistical aspect of the electron transport properties can be understood within the framework of the unitary universality class with channel-number imbalance. It is also shown that a perfectly conducting channel in a disordered graphene nanoribbon is remarkably robust against dephasing.