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arXiv · 0709.4317

The connection between noise and quantum correlations in a double quantum dot

F. Bodoky·W. Belzig·C. Bruder
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Abstract

We investigate the current and noise characteristics of a double quantum dot system. The strong correlations induced by the Coulomb interaction 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.

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F. Bodoky, W. Belzig, C. Bruder. 2007-12-21. The connection between noise and quantum correlations in a double quantum dot. https://doi.org/10.1103/physrevb.77.035302

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