Abstract

Using the variational method, various types of mixed two-dimensional coupled negative and positive trions in a GaAs strongly oblate ellipsoidal quantum dot in the intermediate quantization mode were investigated. The trial wave function for the positive and negative trions is constructed on the basis of a single-particle wave function obtained in the framework of the adiabatic approximation. The dependences of the binding energy of the trion states and of the recombination of all types of trions on the geometric parameters of an ellipsoidal quantum dot are obtained. The radiative lifetime of various types of positive and negative trions is estimated for the intermediate quantization mode.

中文翻译：

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GaAs椭圆形量子点中不同类型三极子态的理论研究

摘要

使用变分方法，研究了在中等量化模式下GaAs强扁椭圆形量子点中各种类型的混合二维耦合的正负三振子。正负负子的试波函数是基于在绝热近似框架中获得的单粒子波函数构建的。得到了三重态的结合能和所有类型的重子的重组对椭圆形量子点的几何参数的依赖性。对于中间量化模式，估计了各种类型的正和负trion的辐射寿命。