Factorization of quantum charge transport for non-interacting fermions

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Abanov, Alexander G.
Ivanov, D. A.
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Abstract
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We show that the statistics of the charge transfer of non-interacting fermions through a two-lead contact is generalized binomial, at any temperature and for any form of the scattering matrix: an arbitrary charge-transfer process can be decomposed into independent single-particle events. This result generalizes previous studies of adiabatic pumping at zero temperature and of transport induced by bias voltage.
Comment: 13 pages, 3 figures, typos corrected, references added
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Condensed Matter - Mesoscale and Nanoscale Physics
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