Landau-Zener transitions in a semiconductor quantum dot

被引：7
|
作者：
Murgida, G. E. [1 ]
Wisniacki, D. A. [1 ]
Tamborenea, P. I. [1 ]
机构：
[1] Univ Buenos Aires, Dept Fis JJ Giambiagi, Buenos Aires, DF, Argentina
来源：
JOURNAL OF MODERN OPTICS | 2009年 / 56卷 / 06期
关键词：
quantum dot; Landau-Zener transitions; quantum control; 2 INTERACTING ELECTRONS; COMPLEX SPECTRA; LOCALIZATION; MOLECULE; DRIVEN; ENTANGLEMENT; SYSTEMS; FIELDS; MODEL;
D O I：
10.1080/09500340802263109
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We study the transitions between neighboring energy levels in a quasi-one-dimensional semiconductor quantum dot with two interacting electrons in it, when it is subject to a linearly time-dependent electric field. We analyze the applicability of a simple two-level Landau-Zener model to describe the evolution of the probability amplitudes in this realistic system. We show that the Landau-Zener model works very well when it is viewed in the adiabatic basis, but it is not as robust in the diabatic basis.
引用
收藏
页码：799 / 804
页数：6
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