Statistics of charge fluctuations in quantum transport in an alternating field

Ivanov D. A. , Levitov L. S.

The distribution of charge fluctuations during current flow through a region with an alternating field which causes an inelastic scattering is analyzed. The distribution is formed by several independent Bernoulli random processes in which the frequencies of attempts are found as a function of the potential difference and the field frequency. The independent outcomes in one attempt correspond to a coherent passage of several electrons. The probabilities for the outcomes are expressed in terms of multiparticle scattering amplitudes.