【摘要】 用格林函数方法研究了嵌在介观AB环一臂中量子点的电子输运性质 .数值计算表明 :沿着每一共振峰 ,其输运相位连续的增加π ;在两共振峰间的某个位置 ,其输运相位突然减小π ,从而每一共振峰具有相同的相行为 .理论结果与实验观测较好的相符更多还原

【Abstract】 We investigate the electron transport through a double-slit-like Aharonov-Bohm (AB) ring with a quantum dot (QD) embedded in one of its arms. Considering both the resonance of the dot and interference effect, the magnitude and phase of the transmission amplitude through the QD are calculated using Green’s function approach. The numerical results are in good agreement with the experimental observations.更多还原