Detection loophole in Bell experiments: How postselection modifies the requirements to observe nonlocality

Branciard, Cyril (2011) Detection loophole in Bell experiments: How postselection modifies the requirements to observe nonlocality. Physical Review A, 83 3: 032123-1-032123-8. doi:10.1103/PhysRevA.83.032123

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Author Branciard, Cyril
Title Detection loophole in Bell experiments: How postselection modifies the requirements to observe nonlocality
Journal name Physical Review A   Check publisher's open access policy
ISSN 1050-2947
1094-1622
Publication date 2011-03-01
Sub-type Article (original research)
DOI 10.1103/PhysRevA.83.032123
Open Access Status File (Publisher version)
Volume 83
Issue 3
Start page 032123-1
End page 032123-8
Total pages 8
Place of publication College Park, MD, United States
Publisher American Physical Society
Collection year 2012
Language eng
Abstract A common problem in Bell-type experiments is the well-known detection loophole: if the detection efficiencies are not perfect and if one simply postselects the conclusive events, one might observe a violation of a Bell inequality, even though a local model could have explained the experimental results. In this paper, we analyze the set of all postselected correlations that can be explained by a local model, and show that it forms a polytope, larger than the Bell local polytope. We characterize the facets of this postselected local polytope in the Clauser-Horne-Shimony-Holt scenario, where two parties have binary inputs and outcomes. Our approach gives interesting insights on the detection loophole problem.
Keyword Podolsky-rosen experiment
Inequalities
Violation
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Article # 032123

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mathematics and Physics
Official 2012 Collection
 
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Citation counts: TR Web of Science Citation Count  Cited 15 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 14 times in Scopus Article | Citations
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Created: Tue, 18 Oct 2011, 00:08:27 EST by Mr Cyril Branciard on behalf of School of Mathematics & Physics