Excitonic clusters in coupled quantum dots

被引：20
|
作者：
Filinov, AV
Bonitz, M
Lozovik, YE
机构：
[1] Univ Rostock, FB Phys, D-18051 Rostock, Germany
[2] RAS, Inst Spect, Troitsk 142190, Moscow Region, Russia
来源：
JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL | 2003年 / 36卷 / 22期
关键词：
D O I：
10.1088/0305-4470/36/22/310
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We present a first-principles path integral Monte Carlo study of a finite number of strongly correlated electron-hole pairs in two symmetric vertically coupled quantum dots. In this system, the intra- and interdot correlations depend on the distance d between the dots, the density n (strength of confinement potential) and temperature T. For fixed d and T > 0, increasing n leads to four qualitatively different states: an exciton 'liquid', an exciton 'crystal', orientationally decoupled electron and hole 'crystals' and an electron (hole) liquid.
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收藏
页码：5899 / 5904
页数：6
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