Frequency dependent third cumulant of current in diffusive conductors
arXiv:cond-mat/0401632 · doi:10.1103/PhysRevB.70.045304
Abstract
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 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.
8 pages, 4 figures
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