Entanglement of two interacting electrons in a double quantum dot

被引：5
|
作者：
Zhang, P
Li, XG
Zhao, XG
机构：
[1] Inst Appl Phys & Computat Math, Beijing 100088, Peoples R China
[2] Hong Kong Polytech Univ, Dept Appl Math, Hong Kong, Hong Kong, Peoples R China
来源：
PHYSICS LETTERS A | 2002年 / 294卷 / 02期
基金：
中国国家自然科学基金;
关键词：
double quantum dot; entanglement; bell state;
D O I：
10.1016/S0375-9601(01)00801-5
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We study the dynamics of two interacting electrons confined in a double quantum dot in the presence of radiation pulses. We show that the strong transition between two localized states is induced at the avoided crossing between the corresponding energy levels, leading to the maximally entangled Bell states. The frequency and duration of selective light pulses for producing maximally entangled states are identified by both analytic and exact numerical solution of the quantum dynamical equations. (C) 2002 Published by Elsevier Science B.V.
引用
收藏
页码：108 / 112
页数：5
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