Binding energies of an exciton in a Gaussian potential quantum dot  

作　　者：解文方 

机构地区：[1]Department of Physics, Guangzhou University, Guangzhou 510405, China

出　　处：《Chinese Physics B》2006年第1期203-208,共6页中国物理B（英文版）

基　　金：Project supported by the Natural Science Foundation of Guangdong Province, China （Grant No 04009519） and the National Natural Science Foundation of China （Grant No 10475021）.

摘　　要：In this paper, an exciton trapped by a Gaussian confining potential quantum dot has been investigated. Calculations are made by using the method of numerical diagonalization of Hamiltonian in the effective-mass approximation. The dependences of binding energies of the ground state and the first excited state on the size of the confining potential and the strength of the magnetic field are analysed explicitly.In this paper, an exciton trapped by a Gaussian confining potential quantum dot has been investigated. Calculations are made by using the method of numerical diagonalization of Hamiltonian in the effective-mass approximation. The dependences of binding energies of the ground state and the first excited state on the size of the confining potential and the strength of the magnetic field are analysed explicitly.

关 键 词：quantum dot EXCITON 

分 类 号：O413.2[理学—理论物理]