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

页码：799 / 804

页数：6

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