两个量子窄区串联时的绝热输运和欧姆输运  

ADIABATIC TRANSPORT AND OHMIC TRANSPORT OF NARROW CONSTRICTIONS IN SERIES

作　　者：蒋祺[1] 沈顺清[1] 陶瑞宝[1] 

机构地区：[1]复旦大学物理系

出　　处：《物理学报》1991年第7期1157-1161,共5页Acta Physica Sinica

摘　　要：利用Landauer公式的多通道推广形式,研究了两个不相等的量子窄区在串联情形下的绝热输运和欧姆输运。这两个窄区以一个密闭的空腔相连接,计算结果表明绝热输运导致窄区电阻的非相加性,而非绝热输运服从欧姆相加规则。这与实验定性一致。Using the multi-channel generalization of Landauer formula, we investigate the adiaba-tic transport and the Ohmic transport of two unequal narrow constrictions in series with a closed cavity in between. It is shown that the adiabatic transmission leads to the nonadditivity of constriction's resistances, and the completely incoherent transport obeys the Ohmic addition rule.

关 键 词：量子窄区 串联 绝热输运 欧姆输运 

分 类 号：O481[理学—固体物理]