Phys. Rev. Lett. 100, 086602 (2008) [4 pages]Allowed Charge Transfers between Coherent Conductors Driven by a Time-Dependent ScattererReceived 26 September 2007; published 28 February 2008 We derive constraints on the statistics of the charge transfer between two conductors in the model of arbitrary time-dependent instant scattering of noninteracting fermions at zero temperature. The constraints are formulated in terms of analytic properties of the generating function: its zeros must lie on the negative real axis. This result generalizes existing studies for scattering by a time-independent scatterer under time-dependent bias voltage. © 2008 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.100.086602
DOI:
10.1103/PhysRevLett.100.086602
PACS:
72.70.+m, 73.23.−b, 73.23.Hk, 05.40.−a
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