Excitonic quantum interference in a quantum dot chain with rings

被引：6
|
作者：
Hong, Suc-Kyoung [1 ]
Nam, SeogWoo [1 ]
Yeon, Kyu-Hwang [2 ]
机构：
[1] Korea Univ, Dept Display & Semicond Phys, Jochiwon, Chungnam, South Korea
[2] Chungbuk Natl Univ, Coll Nat Sci, Dept Phys, Cheonju, Chungbuk, South Korea
来源：
NANOTECHNOLOGY | 2008年 / 19卷 / 15期
关键词：
D O I：
10.1088/0957-4484/19/15/155402
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
We demonstrate excitonic quantum interference in a closely spaced quantum dot chain with nanorings. In the resonant dipole-dipole interaction model with direct diagonalization method, we have found a peculiar feature that the excitation of specified quantum dots in the chain is completely inhibited, depending on the orientational configuration of the transition dipole moments and specified initial preparation of the excitation. In practice, these excited states facilitating quantum interference can provide a conceptual basis for quantum interference devices of excitonic hopping.
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页数：4
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