Fano-like resonances in three-quantum-dot Aharonov-Bohm rings

被引：6

作者：

Gómez, I

Domínguez-Adame, F

Orellana, P

机构：

[1] Univ Complutense, Dept Fis Mat, GISC, E-28040 Madrid, Spain

[2] Univ Catolica Norte, Dept Fis, Antofagasta, Chile

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 2004年 / 16卷 / 09期

关键词：

D O I：

10.1088/0953-8984/16/9/009

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

In this work we study electron transport through quantum wires coupled to a quantum dot Aharonov-Bohm ring by using a noninteracting Anderson tunnelling Hamiltonian. In the case of an asymmetric coupling and three dots within the Aharonov-Bohm ring we have observed the appearance of Fano-like resonances in the conductance. We have investigated the asymmetry and the position of the conductance resonances and found closed expressions. We have also observed Aharonov-Bohm oscillations. Finally the local density of states as well as the probability amplitude phases have been studied.

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收藏

页码：1613 / 1621

页数：9

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