非对称量子点中极化子相互作用能的温度效应（英文）  

TEMPERATURE EFFECT OF THE POLARON'S INTERACTION ENERGY IN AN ASYMMETRIC QUANTUM DOT

作　　者：张剑锋[1] 单淑萍[1] 

机构地区：[1]福建省龙岩学院物理与机电工程学院,福建龙岩364000

出　　处：《低温物理学报》2015年第5期376-380,共5页Low Temperature Physical Letters

摘　　要：采用改进的线性组合算符法研究了非对称量子点中强耦合极化的性质,分别得到了平均声子数和相互作用能与温度之间的关系.结果表明平均声子数和相互作用能都是温度的增函数.在相同温度下,横向受限强度对相互作用能的影响比纵向受限强度对相互作用能的影响大.Using an improved linear combination operator method, we investigate the properties of the strong- coupling polaron in an asymmetric quantum dot. The relations between the mean number of phonons, the interaction energy and the temperature are derived. It is found that the mean number of phonons and the interaction energy are increasing functions of the temperature. At the same temperature, the influence of the transverse confinement length on the interaction energy is larger than that of the longitudinal one.

关 键 词：非对称量子点 温度效应 平均声子数 相互作用能 

分 类 号：O471.1[理学—半导体物理]