| 一维激子-光学声子系统 |
| |
| 引用本文： | 李光栋,顾世洧.一维激子-光学声子系统[J].江西科学,1988(2). |
| |
| 作者姓名： | 李光栋 顾世洧 |
| |
| 作者单位： | 江西鹰潭科技情报研究所
(李光栋)，上海交通大学(顾世洧) |
| |
| 摘 要： | 本文讨论一维晶体中激子通过形变势和光学声子的相互作用,分别导出强,弱耦合激子基态的有效哈密顿量和重正化有效质量。在强耦合情况下,一维激子的自能及重正化有效质量是α的降幂级数,其首项为α的一次方。在弱耦合情况下,一维激子的自能及重正化有效质量是α的一次函数。
|
| 关 键 词： | 一维晶体 激子 有效哈密顿量 有效质量 |
PROPERTIES OF ONE-DIMENSIONAL EXCITONOPTICAL PHONONS SYSTEM |
| |
| Li Guangdong.PROPERTIES OF ONE-DIMENSIONAL EXCITONOPTICAL PHONONS SYSTEM[J].Jiangxi Science,1988(2). |
| |
| Authors: | Li Guangdong |
| |
| Abstract: | Some properties of the interaction of the exciton with optical-phono -as via the deformation potential in one-dimensional Crystal are investigated within the scheme of variational approach based on the unitary transformation and the method of a layrange multiplier.
The effective Hamitonian, the effective mass and the effective potential of the exciton in the electron-hole is calculated in both the weak-and strong-coupling linit. In the strong-coupling limit the self-trapping energy and the effective mass of one-dimensional exciton could be written as a series in a-1, the first term being a, Coupling Constant. In the weak-coupling limit the self-trapping energy of one-dimensional exciton is propert-ional to a, the effective mass is proportional to a-1 . |
| |
| Keywords: | One-dimensional crystal Exciton Effective Hamitonian Effective mass |
| 本文献已被 CNKI 等数据库收录！ |
|
