Exact eigenstates and transmission for two interacting electrons on quantum dots

被引：0
|
作者：
Aharony, A [1 ]
Entin-Wohlman, O
Levinson, Y
Imry, Y
机构：
[1] Tel Aviv Univ, Sch Phys & Astron, IL-69978 Tel Aviv, Israel
[2] Weizmann Inst Sci, Dept Condensed Matter Phys, IL-76100 Rehovot, Israel
来源：
ANNALEN DER PHYSIK | 1999年 / 8卷 / 7-9期
关键词：
interactions; delocalization; metal-insulator transitions;
D O I：
10.1002/(SICI)1521-3889(199911)8:7/9<685::AID-ANDP685>3.0.CO;2-7
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The eigenstates and the scattering transmission for two interacting electrons are found exactly for I quantum dots, including the hybridization with the states on the leads. The results imply limitations on the validity of the Coulomb blockade picture. The ground states for I = 1, 2 on a one-dimensional chain (modeling single and double quantum dots) exhibit quantum delocalization and magnetic transitions. The effective transmission T of two interacting electrons through one impurity (I = 1) is enhanced by a renormalization of the repulsive interaction, when one of the electrons is captured in a strongly localized state.
引用
收藏
页码：685 / 690
页数：6
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