| 四层单电子垂直耦合量子点的基态跃迁 |
| |
| 引用本文： | 王安梅,蔡子亮.四层单电子垂直耦合量子点的基态跃迁[J].河南师范大学学报(自然科学版),2007,35(4):86-89. |
| |
| 作者姓名： | 王安梅 蔡子亮 |
| |
| 作者单位： | 许昌学院,电信学院,河南,许昌,461000 |
| |
| 基金项目： | 河南省基础与前沿技术研究计划项目 |
| |
| 摘 要： | 用精确对角化的方法研究了处于外磁场中四层单电子垂直耦合量子点系统.我们以总自旋S=0为例计算了基态跃迁随外磁场的变化关系.我们发现在强耦合情况下基态会随着外磁场的增大出现不连续跃迁,而在弱耦合情况下就不会产生基态跃迁.
|
| 关 键 词： | 耦合量子点 基态跃迁 少体物理 |
| 文章编号： | 1000-2367(2007)04-0086-03 |
| 修稿时间： | 2006年10月14 |
Ground State Transitions in Vertically Coupled Four-layer Single Electron Quantum Dots |
| |
| WANG An-mei,CAI Zi-liang.Ground State Transitions in Vertically Coupled Four-layer Single Electron Quantum Dots[J].Journal of Henan Normal University(Natural Science),2007,35(4):86-89. |
| |
| Authors: | WANG An-mei CAI Zi-liang |
| |
| Abstract: | We studied the ground-state-transition of a vertically coupled four-layer single electron QDs system under a magnetic field by the exact diagonalization of the Hamitonian matix.For S=0,the energy spectra of the Dots are calculated as a function of applied magnetic field.We found discontinuous ground-state-transition induced by an external magnetic field in the case of strong coupling.However,in the case of weak coupling,such a transition does not occur. |
| |
| Keywords: | coupled quantum dot ground-state-transition Few-body physics |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
