Hardy's nonlocality for generalized n-particle GHZ states
Quantum Physics
2009-11-10 v3
Abstract
In this paper we extend Hardy's nonlocality proof for two spin-1/2 particles [PRL 71 (1993) 1665] to the case of n spin-1/2 particles configured in the generalized GHZ state. We show that, for all n \geq 3, any entangled GHZ state violates the Bell inequality associated with the Hardy experiment. This feature is important since it has been shown [PRL 88 (2002) 210402] that, for all n odd, there are entangled GHZ states that do not violate any standard n-particle correlation Bell inequality.
Cite
@article{arxiv.quant-ph/0401122,
title = {Hardy's nonlocality for generalized n-particle GHZ states},
author = {Jose L. Cereceda},
journal= {arXiv preprint arXiv:quant-ph/0401122},
year = {2009}
}
Comments
LaTeX file, 8 pages, 2 eps figures; journal version