开放量子点输运的Fano机制
介观与纳米尺度物理
2010-08-18 v2
摘要
我们分析了通过量子点接触与导电引线强耦合的量子点——输运的Fano机制——并报告了多种共振态，这些共振态表明在低约束势的散射过程中相互作用共振占主导地位。存在类似于孤立量子点本征态的共振态，其宽度随与环境的耦合强度增加而增大，以及混合共振态。后者近似地由横向具有相同宇称的本征态的线性组合得到，相应的共振表现出共振俘获或能级排斥现象。混合模式的存在表明，开放量子点在Fano机制中的行为类似于人造分子。
引用
@article{arxiv.1004.0472,
title = {Fano Regime of Transport through Open Quantum Dots},
author = {E. R. Racec and U. Wulf and P. N. Racec},
journal= {arXiv preprint arXiv:1004.0472},
year = {2010}
}
备注
REVTeX4, 23 pages, 12 figures. Changed the title; Changed the abrupt potential with linearly varying potential at the dot-lead interfaces; Changed all figures; Added new figures; Concise presentation of the analytical calculations; Corrected typos; Added references