Nonlinear effects of phonon fluctuations on transport through nanoscale junctions

Details Nonlinear effects of phonon fluctuations on transport through nanoscale junctions Nonlinear effects of phonon fluctuations on transport through nanoscale junctions

2010-06-02

arxiv.org/abs/1006.0426v2

Phys. Rev. B 82, 121414 (2010)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 3 figures

Scientific paper

10.1103/PhysRevB.82.121414

We analyze the effect of electron-phonon coupling on the full counting statistics of a molecular junction beyond the lowest order perturbation theory. Our approach allows to take into account analytically the feedback between the non-equilibrium phonon and electronic distributions in the quantum regime. We show that even for junctions with high transmission and relatively weak electron-phonon coupling this feedback gives rise to increasingly higher nonlinearities in the voltage dependence of the cumulants of the transmitted charges distribution.

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