| Swapping Kondo resonances in coupled double quantum dots | |
| Zhang, GM ; Lu, R ; Liu, ZR ; Yu, L | |
| 2010-05-06 ; 2010-05-06 | |
| 关键词 | SINGLET-TRIPLET TRANSITION COMPUTATION GATES Physics, Condensed Matter |
| 中文摘要 | Strong 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. |
| 语种 | 英语 ; 英语 |
| 出版者 | AMERICAN PHYSICAL SOC ; COLLEGE PK ; ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA |
| 内容类型 | 期刊论文 |
| 源URL | [http://hdl.handle.net/123456789/14503]  |
| 专题 | 清华大学 |
| 推荐引用方式 GB/T 7714 | Zhang, GM,Lu, R,Liu, ZR,et al. Swapping Kondo resonances in coupled double quantum dots[J],2010, 2010. |
| APA | Zhang, GM,Lu, R,Liu, ZR,&Yu, L.(2010).Swapping Kondo resonances in coupled double quantum dots.. |
| MLA | Zhang, GM,et al."Swapping Kondo resonances in coupled double quantum dots".(2010). |
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