Shot noise and Coulomb blockade of Andreev reflection

Abstract

We derive low energy effective action for a short coherent conductor between normal (N) and superconducting (S) reservoirs. We evaluate interaction correction $\delta G$ to Andreev conductance and demonstrate a close relation between Coulomb effects and shot noise in NS systems. In the diffusive limit doubling of both shot noise power and charge of the carriers yields $|\delta G|$ four times bigger than in the normal case. Our predictions can be directly tested in future experiments.

4 pages, 2 figures

References in corpus (2)

• Dichotomy in short superconducting nanowires: thermal phase slippage vs. Coulomb blockade
• Experimental Test of the Dynamical Coulomb Blockade Theory for Short Coherent Conductors

Cited by in corpus (10)

• Shot noise and Coulomb effects on non-local electron transport in normal-superconducting-normal heterostructures
• Fluctuations of the Josephson current and electron-electron interactions in superconducting weak links
• Dephasing of Cooper pairs and subgap electron transport in superconducting hybrids
• Time-dependent Andreev reflection
• Effective action theory of Andreev level spectroscopy
• Supercurrent dephasing by electron-electron interactions
• Coulomb blockade of non-local electron transport in metallic conductors
• Non-local electron transport and Coulomb effects in three-terminal metallic conductors
• Current noise and Coulomb effects in superconducting contacts
• Decoherence of Cooper pairs and subgap magnetoconductance of superconducting hybrids