Based on a method of operator and an analysis of Landau engener level, this paper obtains the characteristics of 2D electron gas.

• 应用算符的方法及通过朗道能级的分析,得出了二维电子气的能级特性,由此通过态密度、简并度的讨论,研究了半导体超晶格量子阱的原理及其广泛的应用。