paper

Cascade Boltzmann - Langevin approach to higher-order current correlations in diffusive metal contacts

arXiv:cond-mat/0203503 · doi:10.1103/PhysRevB.66.075334

Abstract

The Boltzmann - Langevin approach is extended to calculations of third and fourth cumulants of current in diffusive-metal contacts. These cumulants result from indirect correlations between current fluctuations, which may be considered as "noise of noise". The calculated third cumulant coincides exactly with its quantum-mechanical value. The fourth cumulant tends to its quantum-mechanical value at high voltages and to a positive value at V=0 changing its sign at .

6 pages, 2 eps figures, typo corrected, minor changes

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