Entanglement criteria and nonlocality for multi-mode continuous variable systems
Quantum Physics
2015-05-13 v2
Abstract
We demonstrate how to efficiently derive a broad class of inequalities for entanglement detection in multi-mode continuous variable systems. The separability conditions are established from partial transposition (PT) in combination with several distinct necessary conditions for a quantum physical state, which include previously established inequalities as special cases. Remarkably, our method enables us to support Peres' conjecture to its full generality within the framework of Cavalcanti-Foster-Reid-Drummond multipartite Bell inequality [Phys. Rev. Lett. 99}, 210405 (2007)] that the nonlocality necessarily implies negative PT entangled states.
Cite
@article{arxiv.0908.2273,
title = {Entanglement criteria and nonlocality for multi-mode continuous variable systems},
author = {Qingqing Sun and Hyunchul Nha and M. Suhail Zubairy},
journal= {arXiv preprint arXiv:0908.2273},
year = {2015}
}
Comments
4 pages, published