常熟理工学院学报
常熟理工學院學報
상숙리공학원학보
JOURNAL OF CHANGSHU INSTITUTE OF TECHNOLOGY
2014年
4期
7-10
,共4页
电导%量子点%反共振
電導%量子點%反共振
전도%양자점%반공진
conductance%quantum dot%anti-resonance
利用等价单粒子多通道网格方法，研究了量子线侧耦合量子点系统的输运特性。在不同温度、相互作用能和跳跃积分值下，计算得到的电导随门压的变化曲线呈现出反共振电导特性。通过计算电子波的相位特性，得到了反共振特性起源于电子共振和非共振路径干涉的结果。
利用等價單粒子多通道網格方法，研究瞭量子線側耦閤量子點繫統的輸運特性。在不同溫度、相互作用能和跳躍積分值下，計算得到的電導隨門壓的變化麯線呈現齣反共振電導特性。通過計算電子波的相位特性，得到瞭反共振特性起源于電子共振和非共振路徑榦涉的結果。
이용등개단입자다통도망격방법，연구료양자선측우합양자점계통적수운특성。재불동온도、상호작용능화도약적분치하，계산득도적전도수문압적변화곡선정현출반공진전도특성。통과계산전자파적상위특성，득도료반공진특성기원우전자공진화비공진로경간섭적결과。
This paper conducts an investigation into the transport properties of a quantum wire with a side-cou-pled quantum dot by means of the equivalent single-particle multi-channel network. The curves of conductance versus the gate voltage are derived with anti-resonant conductance properties for different values of the tempera-ture, the interaction energy and the hopping integral. By calculating the phase features of electronic wave, the re-sults obtained show that the anti-resonance behavior originates from the destructive interference of the directly transmitted wave and the wave reflected by the side-coupled dot.
