The dynamics of coherently driven exciton in a single quantum dot

被引：8

作者：

Wu, ZJ ^{[1
]}

Zhu, KD ^{[1
]}

Zheng, H ^{[1
]}

机构：

[1] Shanghai Jiao Tong Univ, Dept Phys, Shanghai 200030, Peoples R China

来源：

PHYSICS LETTERS A | 2004年 / 333卷 / 3-4期

基金：

上海市自然科学基金; 中国国家自然科学基金;

关键词：

quantum dot; phonon; decoherence; spin-boson model;

D O I：

10.1016/j.physleta.2004.10.049

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The dynamics of coherently driven exciton dressing with phonons in a single semiconductor quantum dot is investigated theoretically in terms of the perturbation treatment based on a unitary transformation. The decoherence rate of the exciton is obtained analytically. The results show that the decoherence due to phonons strongly depends on the exciton-phonon coupling constant and the Rabi frequency of the coherently driving field and is a typical non-Markovian process. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：310 / 315

页数：6

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