Connection between noise and quantum correlations in a double quantum dot

被引：25

作者：

Bodoky, F. ^{[1
]}

Belzig, W. ^{[2
]}

Bruder, C. ^{[3
]}

机构：

[1] Delft Univ Technol, Kavli Inst Nanosci, Lorentzweg 1, NL-2628 CJ Delft, Netherlands

[2] Univ Konstanz, Fachbereich Phys, D-78457 Constance, Germany

[3] Univ Basel, Dept Phys, CH-4056 Basel, Switzerland

来源：

PHYSICAL REVIEW B | 2008年 / 77卷 / 03期

关键词：

D O I：

10.1103/PhysRevB.77.035302

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We investigate the current and noise characteristics of a double quantum dot system. The strong correlations induced by the Coulomb interaction and the Pauli principle create entangled two-electron states and lead to signatures in the transport properties. We show that the interaction parameter phi, which measures the admixture of the double-occupancy contribution to the singlet state and thus the degree of entanglement, can be directly accessed through the Fano factor of super-Poissonian shot noise.

引用

页数：5

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