| 双层垂直耦合量子点研究 |
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| 引用本文： | 王安梅,杨飞,周予生.双层垂直耦合量子点研究[J].许昌学院学报,2010,29(2):28-30. |
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| 作者姓名： | 王安梅 杨飞 周予生 |
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| 作者单位： | 许昌学院,电气信息工程学院,河南,许昌,461000 |
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| 基金项目： | 河南省基础与前沿技术研究计划项目 |
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| 摘 要： | 用精确对角化的方法研究了处于外磁场中两层单电子垂直耦合量子点系统.发现在强耦合情况下,随着外磁场的增加,系统基态的角动量会发生跃迁;而在弱耦合的情况下,基态角动量L和自旋都不会随着外磁场的变化而改变,L=O的自旋单态始终为基态.
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| 关 键 词： | 耦合量子点 基态跃迁 少体物理 |
Double-layer Electrons in Vertically Coupled Quantum Dots |
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| WANG An-mei,YANG Fei,ZHOU Yu-sheng.Double-layer Electrons in Vertically Coupled Quantum Dots[J].Journal of Xuchang University,2010,29(2):28-30. |
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| Authors: | WANG An-mei YANG Fei ZHOU Yu-sheng |
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| Institution: | WANG An-mei,YANG Fei,ZHOU Yu-sheng(College of Electro-information Engineering,Xuchang University,Xuchang 461000,China) |
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| Abstract: | A vertically coupled quantum dots system in a double-layer electrons under a magnetic field is studied by means of the exact diagonalization of the Hamiltonian matrix.It is found that discontinuous ground-state energy transitions are induced by an external magnetic field in the case of strong coupling.However,in the case of weak coupling,the angular momentum L of the true ground state does not change in accordance with the change of the magnetic field B and remains L=0. |
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| Keywords: | coupled quantum dot ground-state-transition few-body physics |
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