| 量子棒中强耦合杂质束缚极化子的振动频率 |
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| 引用本文： | 王东民,肖景林.量子棒中强耦合杂质束缚极化子的振动频率[J].发光学报,2011,32(1):27-32. |
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| 作者姓名： | 王东民 肖景林 |
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| 作者单位： | 1. 商丘师范学院 物理系, 河南 商丘 476000;
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： | 给出了具有椭球边界量子棒经坐标变换成球形边界的哈密顿量。采用线性组合算符和幺正变换的方法研究了在非均匀抛物限制势下量子棒中强耦合杂质束缚极化子的性质。导出了量子棒中强耦合杂质束缚极化子的振动频率和声子平均数随库仑束缚势、电子-声子耦合强度、椭球的纵横比和量子棒的横向和纵向有效受限长度的变化关系。数值计算结果表明:振动频率和声子平均数随电子-声子耦合强度和库仑束缚势的增强而增加,随量子棒的横向和纵向有效受限长度和椭球的纵横比的减小而增大。表现出量子棒的奇特的量子尺寸限制效应。
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| 关 键 词： | 量子棒 线性组合算符 杂质束缚极化子 |
| 收稿时间： | 2010-04-29 |
Vibrational Frequency of Strong-coupling Impurity Bound Polaron in Quantum Rods |
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| WANG Dong-min,XIAO Jing-lin.Vibrational Frequency of Strong-coupling Impurity Bound Polaron in Quantum Rods[J].Chinese Journal of Luminescence,2011,32(1):27-32. |
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| Authors: | WANG Dong-min XIAO Jing-lin |
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| Institution: | 1. Department of Physics, Henan Shangqiu Teachers College, Shangqiu 476000, China;
2. College of Physics and Electronic Information, Inner Mongolia National University, Tongliao 028043, China |
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| Abstract: | The Hamiltonian of a quantum rod with an ellipsoidal boundary is given after a coordinate transformation which can transform the ellipsoidal boundary into spherical one.The properties of the strong-coupling impurity bound polaron in a quantum rod in a three-dimensional anisotropic harmonic potential are studied by using the linear combination operator and the unitary transformation methods.The relationships among the vibrational frequency,the mean number of phonons of strong-coupling impurity bound polaron ... |
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| Keywords: | quantum rods linear combination operator impurity bound polaron |
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