The transport properties in an Aharonov-Bohm interferometer with a quantum dot

	The transport properties in an Aharonov-Bohm interferometer with a quantum dot
	Chen Ming-Lun ; Wang Shun-Jin
刊名	CHINESE PHYSICS
	2007-07
卷号	16 页码:2101-2105
关键词	Aharonov-Bohm interferometer quantum dot Fano effect Kondo effect
ISSN号	1009-1963
英文摘要	This paper investigates the electronic transport properties in an Aharonov-Bohm interferometer with a quantum dot coupling to left and right electrodes. By employing cluster expansions, it transforms the equations of motion of Green's functions into the corresponding equation of motion of connected Green's functions, which provides a natural and uniform truncation scheme. With this method under the Lacroix's truncation approximation, it shows that the asymmetric line shape of zero bias conductance manifests itself as the Fano effect, and the Kondo effect has been observed in the narrow peak of differential conductance curve of the system. Our numerical results also show that the building of Fano state suppresses the amplitude of Kondo resonance.
WOS关键词	KONDO RESONANCE ; ELECTRON-TRANSPORT ; ANDERSON MODEL ; STATES ; RING ; TRANSISTOR ; DENSITY ; PHYSICS ; ATOM ; FANO
WOS研究方向	Physics
语种	英语
出版者	IOP PUBLISHING LTD
WOS记录号	WOS:000247897000050
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/56942]
专题	中国科学院近代物理研究所
通讯作者	Chen Ming-Lun
作者单位	1.Sichuan Univ, Dept Phys, Chengdu 610064, Peoples R China 2.Ctr Theoret Nucl Phys Heavy Ion Res Facil Lanzhou, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Chen Ming-Lun,Wang Shun-Jin. The transport properties in an Aharonov-Bohm interferometer with a quantum dot[J]. CHINESE PHYSICS,2007,16:2101-2105.
APA	Chen Ming-Lun,&Wang Shun-Jin.(2007).The transport properties in an Aharonov-Bohm interferometer with a quantum dot.CHINESE PHYSICS,16,2101-2105.
MLA	Chen Ming-Lun,et al."The transport properties in an Aharonov-Bohm interferometer with a quantum dot".CHINESE PHYSICS 16(2007):2101-2105.