Green-function approach to transport phenomena in quantum pumps

被引：107

作者：

Arrachea, L ^{[1
]}

机构：

[1] Univ Zaragoza, Inst Biocomputac & Fis Sistemas Complejos, E-50009 Zaragoza, Spain

来源：

PHYSICAL REVIEW B | 2005年 / 72卷 / 12期

关键词：

D O I：

10.1103/PhysRevB.72.125349

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We present a general treatment based on nonequilibrium Green functions to study transport phenomena in systems described by tight-binding Hamiltonians coupled to reservoirs and with one or more time-periodic potentials. We apply this treatment to the study of transport phenomena in a double barrier structure with one and two ac potentials. Among other properties, we discuss the origin of the sign of the net current.

引用

页数：11

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