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Zhang, GM; Lu, R; Liu, ZR; Yu, L; Zhang, GM , Tsing Hua Univ, Dept Phys, Beijing 100084, Peoples R China.
Swapping Kondo resonances in coupled double quantum dots
Source PublicationPHYSICAL REVIEW B
KeywordSinglet-triplet Transition Computation Gates
AbstractStrong electron and spin correlations are studied in parallel-coupled double quantum dots with interdot spin superexchange J. In the Kondo regime with degenerate dot energy levels, coherent transport occurs at zero temperature, where two entangled (bonding and antibonding) resonances are formed near the Fermi energy. When increasing J or the dot-lead parallel-coupling asymmetry ratio Gamma(2)/Gamma(1), a swap between two entangled resonances occurs and the line shapes of the transmission are interchanged. The linear conductance shows a peak at the critical values. Such a peculiar effect with the virtue of many-body coherence may be useful in future quantum computing.
2005
ISSN1098-0121
Volume72Issue:7Pages:-
Subject AreaPhysics
Indexed BySCI
Citation statistics
Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/13771
Collection理论物理所科研产出_SCI论文
Corresponding AuthorZhang, GM , Tsing Hua Univ, Dept Phys, Beijing 100084, Peoples R China.
Recommended Citation
GB/T 7714
Zhang, GM,Lu, R,Liu, ZR,et al. Swapping Kondo resonances in coupled double quantum dots[J]. PHYSICAL REVIEW B,2005,72(7):-.
APA Zhang, GM,Lu, R,Liu, ZR,Yu, L,&Zhang, GM , Tsing Hua Univ, Dept Phys, Beijing 100084, Peoples R China..(2005).Swapping Kondo resonances in coupled double quantum dots.PHYSICAL REVIEW B,72(7),-.
MLA Zhang, GM,et al."Swapping Kondo resonances in coupled double quantum dots".PHYSICAL REVIEW B 72.7(2005):-.
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