从散射波函数方法中导出的非平衡格林函数公式  

An explicit derivation of non-equilibrium Green function formula from scattering wave function approach

作　　者：张俊杰[1] 张艳娜[1] 邱宇[1] 蒋永进[1] 

机构地区：[1]浙江师范大学数理与信息工程学院,浙江金华321004

出　　处：《浙江师范大学学报（自然科学版）》2009年第1期59-64,共6页Journal of Zhejiang Normal University:Natural Sciences

摘　　要：给出了从Landauer-Buttiker′s散射波函数导出无相互作用介观系统中的非平衡格林函数公式的严格证明.结果表明:尽管散射波函数理论和非平衡格林函数理论基于非常不同的物理思想,但在应用上这2个等价的理论工具是可以互补的.A rigorous derivation of the non-equilibrium Green function formula （ also called Landauer-Buttiker- Keldysh formula＇s in literature ） was given for non-interacting mesoscopic systems from Landauer-Buttiker＇s scattering wave function approach. For non-interacting problems, these two equivalent tools were showed to be based on very different physical picture but could be complementary to each other in theoretical applications.

关 键 词：量子输运 介观系统 散射波函数 非平衡格林函数 

分 类 号：O88[理学]