| 抛物量子线中极化子的激发态性质 |
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| 引用本文： | 丁朝华,赵翠兰,肖景林.抛物量子线中极化子的激发态性质[J].发光学报,2007,28(2):149-154. |
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| 作者姓名： | 丁朝华 赵翠兰 肖景林 |
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| 作者单位： | 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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| 基金项目： | 国家自然科学基金
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内蒙古高等学校科研项目
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Inner Mongolia Universities Scientific Research Item |
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| 摘 要： | 研究抛物型量子线中极化子激发态的性质。采用线性组合算符法和Pekar变分法,导出了抛物量子线中强耦合和弱耦合两种情况下极化子的基态能量、第一内部激发能量、激发能和振动频率随量子线的约束强度的变化关系。数值计算结果表明:抛物型量子线中极化子的基态能量、第一内部激发能量、激发能和振动频率都随量子线约束强度的增强而增大,体现了量子线受限强度越大,相应的极化子的能量也越大。
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| 关 键 词： | 量子线 极化子 基态能量 第一内部激发能量 激发能 |
| 文章编号： | 1000-7032（2007）02-0149-06 |
| 修稿时间： | 2006-06-25 |
Excited State of Polaron in Parabolic Quantum Wires |
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| DING Zhao-hua,ZHAO Cui-lan,XIAO Jing-lin.Excited State of Polaron in Parabolic Quantum Wires[J].Chinese Journal of Luminescence,2007,28(2):149-154. |
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| Authors: | DING Zhao-hua ZHAO Cui-lan XIAO Jing-lin |
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| Institution: | College of Physics and Electronic Information, Inner Mongolia University for Nationalites , Tongliao 028043, China |
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| Abstract: | With the use of linear combination operator and the variational methods of Pekar type, the properties of the weak- and strong-coupling polarons excited state in parabolic quantum wires were studied. The ground state en-ergy, the first internal excited energy and excited energy were calculated. Their dependence on the confinement strength of parabolic quantum wires was depicted. Numerical calculation indicated that the ground state energy, the first internal excited energy and the excited energy of the weak- and strong-coupling polaron in a parabolic quantum wire will increase with increasing of confinement strength, respectively. |
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| Keywords: | quantum wire polaron ground state energy the first internal excited energy excited energy |
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