施主中心量子点能谱分析

Energy spectrum analysis of donor-center quantum dots

在有效质量近似下,使用数值矩阵对角化的方法,得到了高斯束缚势下施主中心量子点的能谱,并与简谐势相比较.结果显示施主中心量子点基态及低激发态的性质主要取决于量子点的尺寸、束缚势的强度及形状.

Within the effective mass approximation, the energy spectra of the donor-center quantum dot system in Gaussian confining potential are calculated by using the method of numerical matrix diagonalization. The results show that the property of the ground and low-lying states of the quantum dot is rather sensitive to the size and the strength of confinement potential.