Effect of parabolic potential on bipolaron

被引：0
|
作者：
Ruan, YH [1 ]
Chen, QH [1 ]
Jiao, ZK [1 ]
机构：
[1] Zhejiang Univ, Dept Phys, Hangzhou 310027, Peoples R China
来源：
COMMUNICATIONS IN THEORETICAL PHYSICS | 2004年 / 42卷 / 05期
关键词：
bipolaron; quantum dot; confining potential; ground-state energy; binding energy;
D O I：
暂无
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We apply a Feynman path-integral variational approach combining with the average for the relative motion to study the stability of bipolaron in a quantum dot. The binding energy is calculated indifferent parameters. We find that an optimum quantum potential favors the formation of bipolaron. Compared with other methods in literature, the present approach is better than Laudau-Pekar one in all coupling regime and full path-integral one in the strong coupling regime.
引用
收藏
页码：785 / 788
页数：4
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