Detecting genuine multipartite continuous-variable entanglement

Preprint

9 December 2002

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.quant-ph/0212052

Abstract

We derive necessary conditions in terms of the variances of position and momentum linear combinations for all kinds of separability of a multi-party multi-mode continuous-variable state. Their violations can be sufficient for genuine multipartite entanglement, provided the combinations contain both conjugate variables of all modes. Hence a complete state determination, for example by detecting the entire correlation matrix of a Gaussian state, is not needed.

Keywords

MULTIPARTITE CONTINUOUS
VARIABLE ENTANGLEMENT
GENUINE MULTIPARTITE
CONTINUOUS VARIABLE
CORRELATION MATRIX
DETECTING GENUINE
DERIVE NECESSARY
PARTY MULTI

All Related Versions

Version 1, 2002-12-09, ArXiv
Published version: Physical Review A, 67 (5).

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