Birchall, Chris and Schomerus, Henning (2010) Counting statistics for mesoscopic conductors with internal degrees of freedom. Physical Review Letters, 105 (2). ISSN 1079-7114
We consider the transport of electrons passing through a mesoscopic device possessing internal dynamical quantum degrees of freedom. The mutual interaction between the system and the conduction electrons contributes to the current fluctuations, which we describe in terms of full counting statistics. We identify conditions where this discriminates coherent from incoherent internal dynamics and also identify and illustrate conditions under which the device acts to dynamically bunch transmitted or reflected electrons, thereby generating super-Poissonian noise.
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