| 极化子速率对非对称量子点中极化子性质的影响 |
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| 引用本文： | 王春燕,刘亚民,肖景林. 极化子速率对非对称量子点中极化子性质的影响[J]. 内蒙古民族大学学报(自然科学版), 2007, 22(5): 481-483 |
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| 作者姓名： | 王春燕 刘亚民 肖景林 |
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| 作者单位： | 1. 内蒙古呼伦贝尔学院物理系,内蒙古,海拉尔,021008
2. 内蒙古民族大学,物理与电子信息学院,内蒙古,通辽,028043 |
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| 摘 要： | 采用改进的线性组合算符和幺正变换方法研究极化子的速率对非对称量子点中弱耦合极化子性质的影响.导出了极化子速率对非对称量子点中弱耦合极化子声子平均数的影响.数值计算结果表明：非对称量子点中弱耦合极化子的振动频率随量子点的横向和纵向受限长度的增大而增大.非对称量子点弱耦合极化子的声子平均数随极化子速率的增加而增大.
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| 关 键 词： | 非对称量子点 极化子速率 线性组合算符 |
| 文章编号： | 1671-0185（2007）5-0481-03 |
| 收稿时间： | 2007-05-19 |
| 修稿时间： | 2007-05-19 |
Influence of the Velocity of Polaron on the Properties of Polaron in an Asymmetric Quantum Dot |
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| WANG Chun-yan,LIU Ya-min,XIAO Jing-lin. Influence of the Velocity of Polaron on the Properties of Polaron in an Asymmetric Quantum Dot[J]. Journal of Inner Mongolia University for the Nationalities(Natural Sciences), 2007, 22(5): 481-483 |
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| Authors: | WANG Chun-yan LIU Ya-min XIAO Jing-lin |
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| Abstract: | The influence of the velocity of polaron on the properties of weak-coupling polaron in an asymmetric quantum dot is studied by using improved linear combination operator and unitary transformation methods. The influence of the velocity of polaron on the mean number of the phonons of the weak- coupling polaron in an asymmetric quantum dot is derived. Numerical calculations are performed and the results show that the vibration frequency of weak - coupling polaron will increase with the increasing of the transverse and longitudinal confinement strength of the quantum dot. The mean number of the phonons of the weak- coupling polaron in an asymmetric quantum dot will increase with the increase of the velocity of polaron. |
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| Keywords: | Asymmetric quantum dot Vdodty of polaron Linear eombination operator |
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