Disappearance of quantum chaos in coupled chaotic quantum dots

被引：3
|
作者：
Filikhin, Igor [1 ]
Matinyan, Sergei [1 ]
Vlahovic, Branislav [1 ]
机构：
[1] N Carolina Cent Univ, Dept Phys, Durham, NC 27707 USA
来源：
PHYSICS LETTERS A | 2011年 / 375卷 / 03期
基金：
美国国家科学基金会;
关键词：
Quantum dots; Single particle states; Quantum chaos; Control of chaos; BILLIARD;
D O I：
10.1016/j.physleta.2010.11.068
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Statistical properties of the single electron levels confined in the semiconductor (InAs/GaAs, Si/SiO2) double quantum dots (DQDs) are considered. We demonstrate that in the electronically coupled chaotic quantum dots the chaos with its level repulsion disappears and the nearest neighbor level statistics becomes Poissonian. This result is discussed in the light of the recently predicted "huge conductance peak" by R.S. Whitney et al. [Phys. Rev. Lett. 102 (2009) 186802] in the mirror symmetric DQDs. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：620 / 623
页数：4
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