Electronic Entanglement in the Vicinity of a Superconductor
Mesoscale and Nanoscale Physics
2009-10-31 v4 Superconductivity
Quantum Physics
Abstract
A weakly biased normal-metal-superconductor junction is considered as a potential device injecting entangled pairs of quasi-particles into a normal-metal lead. The two-particle states arise from Cooper pairs decaying into the normal lead and are characterized by entangled spin- and orbital degrees of freedom. The separation of the entangled quasi-particles is achieved with a fork geometry and normal leads containing spin- or energy-selective filters. Measuring the current-current cross-correlator between the two normal leads allows to probe the efficiency of the entanglement.
Keywords
Cite
@article{arxiv.cond-mat/0009193,
title = {Electronic Entanglement in the Vicinity of a Superconductor},
author = {Gordey B. Lesovik and Thierry Martin and Gianni Blatter},
journal= {arXiv preprint arXiv:cond-mat/0009193},
year = {2009}
}
Comments
4 pages, 2 eps figures, minor additions (including entangled wave function and particle number correlator)