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Circuit theory for noise in incoherent normal-superconducting structures

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Published 7 April 2006 Published under licence by IOP Publishing Ltd
, , Citation P Virtanen and T T Heikkilä 2006 New J. Phys. 8 50DOI 10.1088/1367-2630/8/4/050

1367-2630/8/4/50

Abstract

We consider the current fluctuations in a mesoscopic circuit consisting of nodes connected by arbitrary connectors, in a setup with multiple normal or superconducting terminals. In the limit of the weak superconducting proximity effect, simplified equations for the second-order cross-correlators can be derived from the general counting-field theory, and the result coincides with the semi-classical principle of minimal correlations. We discuss the derivation of this result in a multi-node case.

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10.1088/1367-2630/8/4/050
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