The connection between noise and quantum correlations in a double quantum dot
arXiv:0709.4317 · doi:10.1103/PhysRevB.77.035302
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.
5 pages, major revision, to be published in Phys. Rev. B
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