Tunable noise cross correlations in a double quantum dot.
Tunable noise cross correlations in a double quantum dot.
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DOI：
10.1103/physrevlett.98.056801
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发表时间：
2006-07
影响因子：
8.6
通讯作者：
D. McClure;L. DiCarlo;Y. Zhang;H. Engel;C. Marcus;M. Hanson;A. Gossard
中科院分区：
文献类型：
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作者：
D. McClure;L. DiCarlo;Y. Zhang;H. Engel;C. Marcus;M. Hanson;A. Gossard
我们报道了库仑阻塞下两个电容耦合量子点的时间电流涨落之间的互相关测量结果。交叉谱密度的符号可以通过栅极电压和源漏偏压来调节。通过在序贯隧穿模型中考虑点间库仑相互作用，我们发现与数据符合得很好。
We report measurements of the cross correlation between temporal current fluctuations in two capacitively coupled quantum dots in the Coulomb blockade regime. The sign of the cross-spectral density is found to be tunable by gate voltage and source-drain bias. We find good agreement with the data by including an interdot Coulomb interaction in a sequential-tunneling model.