Quantum kinetics of carrier capture processes into a quantum dot

被引：3
|
作者：
Kuhn, T [1 ]
Glanemann, M [1 ]
Axt, VM [1 ]
机构：
[1] Univ Munster, Inst Festkorpertheorie, D-48149 Munster, Germany
来源：
PHYSICA B-CONDENSED MATTER | 2002年 / 314卷 / 1-4期
关键词：
carrier capture; quantum kinetics; quantum transport; quantum dot;
D O I：
10.1016/S0921-4526(01)01437-5
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The capture of electrons moving in a quantum wire into an embedded quantum dot due to the interaction with optical phonons is studied on a quantum kinetic level within the density matrix approach. We find even at low temperatures where only phonon emission is possible a non-monotonic time-dependence of the bound state occupations due to virtual transitions. In the case of several bound dot states the capture in general results in a coherent superposition of these states, (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：455 / 458
页数：4
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