Ground and excited states of three-electron quantum dots

被引：3
|
作者：
Fang, Angbo
Chi, Xuguang
Sheng, Ping [1 ]
机构：
[1] Hong Kong Univ Sci & Technol, Dept Phys, Kowloon, Hong Kong, Peoples R China
[2] Hong Kong Univ Sci & Technol, Inst Nanosci & Technol, Kowloon, Hong Kong, Peoples R China
来源：
SOLID STATE COMMUNICATIONS | 2007年 / 142卷 / 10期
关键词：
quantum three-body problem; phase diagrams; Coulomb potential;
D O I：
10.1016/j.ssc.2007.03.046
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
We determine the rich phase diagrams for three-electron parabolic potential quantum dots in both the strong-correlation and the high-magnetic-field regimes, by employing an accurate non-variational approach. Through the clean separation of spatial rotation from kinematic rotation, the hidden symmetry of the zero angular momentum state is revealed. We also show that although the ground state for arbitrary total angular momentum (L) forms an electronic Wigner molecule, the highest low-energy state for large L is liquid-like in character and beyond a classical description. (C) 2007 Elsevier Ltd. All rights reserved.
引用
收藏
页码：551 / 555
页数：5
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