Frequency dependent third cumulant of current in diffusive conductors

Details Frequency dependent third cumulant of current in diffusive conductors Frequency dependent third cumulant of current in diffusive conductors

2004-01-30

arxiv.org/abs/cond-mat/0401632v1

Phys. Rev. B 70, 045304 (2004)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

8 pages, 4 figures

Scientific paper

10.1103/PhysRevB.70.045304

We calculate the frequency dispersion of the third cumulant of current in diffusive-metal contacts. The cumulant exhibits a dispersion at the inverse time of diffusion across the contact, which is typically much smaller than the inverse $RC$ time. This dispersion is much more pronounced in the case of strong electron-electron scattering than in the case of purely elastic scattering because of a different symmetry of the relevant second-order correlation functions.

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