Binding energies of an exciton in a Gaussian potential quantum dot

• 来源期刊: 中国物理（英文版）
• 关键词: quantum dot exciton
• 年，卷（期）: 2006,（1）
• 页码范围: 203-208
• 页数: 6页
• 语种: 英文

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.