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The European Physical Journal D

, Volume 63, Issue 1, pp 3–8 | Cite as

Charge transfer statistics and entanglement in normal-quantum dot-superconductor hybrid structures

  • H. SollerEmail author
  • A. KomnikEmail author
Topical issue: Hybrid Quantum Systems – New Perspectives on Quantum State Control Regular Article

Abstract

We analyze the full counting statistics (FCS) of a single-site quantum dot coupled to multiple metallic electrodes in the normal state and a superconductor for arbitrary transmission. We present an analytical solution of the problem taking into account the full energy dependence of the transmission coefficient. We identify two transport processes as sources of entanglement between the current carriers by observing positive cross current correlations. Furthermore, we consider ferromagnetic electrodes and show how they can be used as detectors in experiments violating the Bell-Clauser-Horne-Shimony-Holt inequality.

Keywords

Cooper Pair Charge Transfer Statistic Cumulant Generate Function Resonant Level Ferromagnetic Electrode 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg 2010

Authors and Affiliations

  1. 1.Institut für Theoretische Physik, Ruprecht-Karls-Universität HeidelbergHeidelbergGermany

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