Spectroscopy of non-local superconducting correlations in a double quantum dot

We investigate non-linear transport in a double quantum dot connected to two normal electrodes and a central superconducting finger. By this means, we perform a transport spectroscopy of such a system which implements a Cooper pair splitter. The non-linear conductance exhibits strong subgap features...

Full description

Saved in:
Bibliographic Details
Main Authors Herrmann, L. G, Burset, P, Herrera, W. J, Portier, F, Roche, P, Strunk, C, Yeyati, A. Levy, Kontos, T
Format Journal Article
LanguageEnglish
Published 09.05.2012
Subjects
Physics - Mesoscale and Nanoscale Physics
Physics - Strongly Correlated Electrons
Physics - Superconductivity
Online AccessGet full text

Cover

More Information
Summary:We investigate non-linear transport in a double quantum dot connected to two normal electrodes and a central superconducting finger. By this means, we perform a transport spectroscopy of such a system which implements a Cooper pair splitter. The non-linear conductance exhibits strong subgap features which can be associated with the coherence of the injected Cooper pairs. Our findings are well accounted for by the recently developed microscopic theory of Cooper pairs splitters made in SWNTs.
DOI:10.48550/arxiv.1205.1972