Complete condition for nonzero quantum correlation in continuous variable systems

Quantum correlation provides a promising measure beyond entanglement. Here, we propose a necessary and sufficient condition for nonzero quantum correlation in continuous variable systems, which is simple and easy to perform in terms of a marker Q _r . In order to get this condition, we introduce con...

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Bibliographic Details

Published in:	New Journal of Physics
Main Authors:	Chengjie Zhang, Sixia Yu, Qing Chen, Haidong Yuan, C H Lai, C H Oh
Format:	Article
Language:	English
Published:	IOP Publishing 2015-01-01
Subjects:	quantum correlation continuous variables quantum circuits
Online Access:	https://doi.org/10.1088/1367-2630/17/9/093007