双环形量子点中强耦合极化子的基态能量  

Ground State Energy of Strong-coupling Polaron in a Double Ring-shaped Quantum Dot

作　　者：肖景林[1] XIAO Jing-lin(Institute of Condensed Matter Physics,Inner Mongolia University for Nationalities,Tongliao 028043,China)

机构地区：[1]内蒙古民族大学凝聚态物理研究所,内蒙古通辽028043

出　　处：《内蒙古民族大学学报（自然科学版）》2018年第4期279-282,共4页Journal of Inner Mongolia Minzu University：Natural Sciences

基　　金：国家自然科学基金项目(11464033;1146434)

摘　　要：研究了双环形量子点中强耦合极化子基态能量的性质.采用Pekar类型的变分方法和幺正变换方法导出了双环形量子点中强耦合极化子的基态能量随两个势参量和量子点受限势频率的变化关系.研究结果表明两个势参量和量子点受限势频率对研究双环形量子点中强耦合极化子性质具有重要的影响.The ground state energy of the strong-coupling polaron in a double ring- shaped quantum dot varyingwith the two potential parameters and the frequency of quantum dot confinement potential was derived using variationalmethod of Pekar type and unitary transformation method. The two potential parameters and the frequency of quantum dot confinement potential were found to have great influence on the properties of the ground state energy of the strong-coupling polaron in adouble ring-shaped quantum dot.

关 键 词：双环形量子点 强耦合极化子 Pekar类型变分方法 基态能量 

分 类 号：O469[理学—凝聚态物理]