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Mesoscopic versus Macroscopic division of current fluctuations

Valentin S. Rychkov·Markus Buttiker
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Abstract

We investigate the current shot noise at a three terminal node in which one of the branches contains a noise generating source and the correlations are measured between the currents flowing through the other two branches. Interestingly, if the node is macroscopic, the current correlations are positive, whereas for a quantum coherent mesoscopic node anti-bunching of electrons leads to negative correlations. We present specific predictions which permit the experimental investigation of the crossover from quantum mechanical noise division to macroscopic noise noise division.

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Valentin S. Rychkov, Markus Buttiker. 2006-05-02. Mesoscopic versus Macroscopic division of current fluctuations. https://doi.org/10.1103/physrevlett.96.166806

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