Bell's local causality, Leggett's crypto-nonlocality, and quantum separability are genuinely different concepts

Branciard, Cyril (2013) Bell's local causality, Leggett's crypto-nonlocality, and quantum separability are genuinely different concepts. Physical Review A, 88 4: . doi:10.1103/PhysRevA.88.042113

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Author Branciard, Cyril
Title Bell's local causality, Leggett's crypto-nonlocality, and quantum separability are genuinely different concepts
Journal name Physical Review A   Check publisher's open access policy
ISSN 1050-2947
1094-1622
1538-4446
Publication date 2013-10-01
Year available 2013
Sub-type Article (original research)
DOI 10.1103/PhysRevA.88.042113
Open Access Status File (Publisher version)
Volume 88
Issue 4
Total pages 4
Place of publication College Park, MD, United States
Publisher American Physical Society
Language eng
Abstract I clarify here the relation between Leggett's concept of crypto-nonlocality and the better known notions of Bell's local causality and quantum separability, emphasizing that these are three genuinely different concepts. In particular, I show that while the correlations of separable quantum states clearly satisfy the assumptions of crypto-nonlocality, the opposite is not true: there exist entangled states whose correlations are always compatible with Leggett's crypto-nonlocality.
Keyword Hidden variable theories
Model
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Article number 042113

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mathematics and Physics
Official 2014 Collection
 
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Created: Sun, 17 Nov 2013, 10:05:35 EST by System User on behalf of School of Mathematics & Physics