Failure of local realism revealed by extremely-coarse-grained measurements

Jeong, Hyunseok, Paternostro, Mauro and Ralph, Timothy C. (2009) Failure of local realism revealed by extremely-coarse-grained measurements. Physical Review Letters, 102 6: 060403.1-060403.4. doi:10.1103/PhysRevLett.102.060403

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Author Jeong, Hyunseok
Paternostro, Mauro
Ralph, Timothy C.
Title Failure of local realism revealed by extremely-coarse-grained measurements
Journal name Physical Review Letters   Check publisher's open access policy
ISSN 0031-9007
1079-7114
Publication date 2009-02-12
Year available 2009
Sub-type Article (original research)
DOI 10.1103/PhysRevLett.102.060403
Open Access Status File (Publisher version)
Volume 102
Issue 6
Start page 060403.1
End page 060403.4
Total pages 4
Place of publication College Park, MD, United States
Publisher American Physical Society
Collection year 2010
Language eng
Subject C1
0206 Quantum Physics
970102 Expanding Knowledge in the Physical Sciences
Abstract We show that failure of local realism can be revealed to observers for whom only extremely-coarse-grained measurements are available. In our instances, Bell’s inequality is violated even up to the maximum limit while both the local measurements and the initial local states under scrutiny approach the classical limit. Furthermore, we can observe failure of local realism when an inequality enforced by nonlocal realistic theories is satisfied. This suggests that locality alone may be violated while realism cannot be excluded for specific observables and states. Small-scale experimental demonstration of our examples may be possible in the foreseeable future.
Keyword Hidden-variable Theories
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mathematics and Physics
2010 Higher Education Research Data Collection
 
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Created: Thu, 03 Sep 2009, 08:39:36 EST by Mr Andrew Martlew on behalf of Physics