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.
出处
《物理学报》
SCIE
EI
CAS
CSCD
北大核心
1991年第7期1157-1161,共5页
Acta Physica Sinica
