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Shot noise in superconducting junctions with weak link formed by Anderson impurity

Y. Avishai, A. Golub, A. D. Zaikin

cond-mat.supr-conarXiv:cond-mat/0011275

Abstract

A theory is developed to study shot noise in superconducting (SAS) and hybrid (SAN) junctions with singly occupied Anderson impurity (A) as a weak link. The zero-frequency DC component of the shot noise spectral density is calculated at zero temperature as a function of the bias at different Coulomb repulsion strengths U, and show a remarkable structure resulting from combination of electron-electron interaction and Andreev reflections.

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