一维介观系统的隧道电流零频散粒噪声谱密度  

SPECTRAL DENSITY FOR THE TUNNELING CURRENT ZERO FREQUENCY SHOT NOISE IN A ONE DIMENTIONAL MESOSCOPIC SYSTEM 

作　　者：朱主祥[1] 刘有延[2,3] 

机构地区：[1]华南师范大学物理系 [2]华南理工大学物理系 [3]中国科学院国际材料物理中心

出　　处：《物理学报》1999年第2期302-313,共12页Acta Physica Sinica

基　　金：广东省自然科学基金

摘　　要：导出了一维介观系统隧道结的以非平衡格林函数（闭路格林函数）表示的电流散粒噪声谱密度表达式。Abstract We have derived the expression of the spectral density for the current shot noise in terms of the nonequilibrium Green's functions(closed path Green's functions) for a one dimentional mesoscopic junction, and performed numerical calculations to discuss the dependence of the zero frequency spectral density for the currentshot noise on other variables when the tunnling junction is pure or impure.

关 键 词：隧道电流 噪声谱密度 一维介观系统 介观物理 

分 类 号：O4[理学—物理]