磁场对量子线中束缚极化子激发态性质的影响

J4 ›› 2011, Vol. 28 ›› Issue (6): 748-752.

磁场对量子线中束缚极化子激发态性质的影响

丁朝华¹,苏莉²,何锐¹

1内蒙古民族大学物理与电子信息学院, 内蒙古通辽 028043;
2 通辽职业学院机电工程学院，内蒙古通辽 028045

收稿日期:2011-01-24 修回日期:2011-02-18 出版日期:2011-11-28 发布日期:2011-11-14
通讯作者: 丁朝华（1962-），内蒙古人，硕士，教授，从事凝聚态光学性质的研究。 E-mail:dzhaohua@126.com
基金资助:
国家自然科学基金（10347004）,内蒙古自然科学基金（20080404MS0109）资助

Influence of magnetic field on properties of excited state of bound polaron in quantum wires

DING Zhao-hua¹, SU Li², HE Rui¹

1 College of Physics and Electronic Information, Inner Mongolia University for Nationalites, Tongliao 028043, China;
2 College of Mechanical and Electrical Engineering, Tongliao Vocational College, Tongliao 028045, China

Received:2011-01-24 Revised:2011-02-18 Published:2011-11-28 Online:2011-11-14

摘要/Abstract

摘要：

采用Tokuda线性组合算符和Lee-Low-Pines(LLP)变换方法,研究了磁场和库仑场对抛物量子线中强耦合极化子激发态性质的影响，推导出抛物量子线中强耦合束缚磁极化子的第一内部激发态能量、激发能量和振动频率。数值计算结果表明：抛物量子线中强耦合束缚磁极化子的第一内部激发态能量和激发能及振动频率均随约束强度、回旋频率的增加而增大；第一内部激发态能量随库仑束缚势的增加而减少，激发能和振动频率随库仑束缚势的增加而增强。

关键词: 光电子学, 量子线, 线性组合算符, 束缚磁极化子, 激发态

Abstract:

With Huybrenchts’s linear combination operator and the Lee-Low-Pines(LLP) transformation methods, properties of excited state of strong-coupling magnetopolaron in parabolic quantum wires are studied. The relations of the first internal excited energy, excitation energy and vibration frequency in parabolic quantum wires with the Coulomb bound potential, confinement strength and cyclotron frequency are presented. The numerical results indicate that the first internal excited energy, excitation energy and vibration frequency increase with increasing of confinement strength and cyclotron frequency. The excitation energy and vibration frequency are increasing functions of the Coulomb bound potential. The first internal excited energy decreases with increasing of the Coulomb bound potential.

Key words: optoelectronics, quantum wire, linear-combination operator, bound magnetopolaron, excited state

中图分类号:

O469

丁朝华苏莉何锐. 磁场对量子线中束缚极化子激发态性质的影响[J]. J4, 2011, 28(6): 748-752.

DING Zhao-hua, SU Li, HE Rui . Influence of magnetic field on properties of excited state of bound polaron in quantum wires[J]. J4, 2011, 28(6): 748-752.

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