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：
中国国家自然科学基金; 上海市自然科学基金;
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
收藏
页码：310 / 315
页数：6
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