1301.3674 (J. Baranski et al.)

Replicas of the Fano resonances induced by phonons in a subgap Andreev
tunneling    [PDF]

J. Baranski, T. Domanski

We study influence of the phonon modes on a subgap spectrum and Andreev conductance for the double quantum dot vertically coupled between a metallic and superconducting lead. For the monochromatic phonon reservoir we obtain replicas of the interferometric Fano-type structures appearing simultaneously in the particle and hole channels. We furthermore confront the induced on-dot pairing with the electron correlations and investigate how the phonon modes affect the zero-bias signature of the Kondo effect in Andreev conductance.

View original: http://arxiv.org/abs/1301.3674