| 量子点中的磁极化子:压缩态变分法 |
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| 引用本文： | 李伟萍,王娜,肖景林. 量子点中的磁极化子:压缩态变分法[J]. 内蒙古民族大学学报(自然科学版), 2006, 21(5): 485-488 |
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| 作者姓名： | 李伟萍 王娜 肖景林 |
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| 作者单位： | 内蒙古民族大学,物理与机电学院,内蒙古,通辽,028043 |
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| 基金项目： | 国家自然科学基金;内蒙古高等学校科研项目 |
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| 摘 要： | 采用基于逐次正则变换的变分方法研究了利用单模压缩态变换处理双线性项的情况下抛物量子点中磁极化子的基态能量．讨论了在弱耦合情况下，受限长度，回旋频率，电子一声子耦合常数与基态能量的依赖关系．
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| 关 键 词： | 压缩态 量子点 磁极化子 |
| 文章编号： | 1671-0185(2006)05-0485-03 |
| 修稿时间： | 2006-04-20 |
Magnetopolaron in a Quantum Dot:Squeezed - state Variational Approach |
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| LI Wei-ping,WANG Na,XIAO Jing-lin. Magnetopolaron in a Quantum Dot:Squeezed - state Variational Approach[J]. Journal of Inner Mongolia University for the Nationalities(Natural Sciences), 2006, 21(5): 485-488 |
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| Authors: | LI Wei-ping WANG Na XIAO Jing-lin |
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| Abstract: | In this paper,by applying a variational approach based on two successive canonical transformations and using a displaced-oscillator type unitary transformation to deal with bilinear terms,the ground state energies of magnetopolaron in a parabolic quantum dot is studied.The ground state energy of weak-coupling and strong-coupling magnetopolaron are calculated.Their dependence on the confinement length,the cyclotron frequency and the electron-LO-phonon coupling constant is depicted in the electron-LO-phonon weak-coupling case. |
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| Keywords: | The squeezed-state Quantum dot Magnetopolaron |
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