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arXiv · 1203.1787

Non-local electron transport and Coulomb effects in three-terminal metallic conductors

D. S. Golubev·A. D. Zaikin
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Abstract

We demonstrate a close relation between Coulomb effects in non-local electron transport and non-local shot noise in three-terminal metallic conductors. Provided the whole structure is normal, cross-correlations in shot noise are negative and Coulomb interaction tends to suppress both local and non-local conductances of the system. The behavior of normal-superconducting-normal structures at subgap energies is entirely different. In the tunneling limit non-local differential conductance of such systems are found to have an S-like shape and can turn negative at non-zero bias. At high transmissions crossed Andreev reflection yields positive noise cross-correlations and Coulomb anti-blockade of non-local electron transport.

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D. S. Golubev, A. D. Zaikin. 2012-03-08. Non-local electron transport and Coulomb effects in three-terminal metallic conductors. https://doi.org/10.1088/1742-6596/338/1/012009

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