Violations of Bell's inequality for Gaussian states with homodyne detection and nonlinear interactions

Paternostro, M., Jeong, H. and Ralph, T. C. (2009) Violations of Bell's inequality for Gaussian states with homodyne detection and nonlinear interactions. Physical Review A, 79 1: 012101-1-012101-7. doi:10.1103/PhysRevA.79.012101

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Author Paternostro, M.
Jeong, H.
Ralph, T. C.
Title Violations of Bell's inequality for Gaussian states with homodyne detection and nonlinear interactions
Journal name Physical Review A   Check publisher's open access policy
ISSN 1050-2947
1094-1622
Publication date 2009-01-05
Year available 2009
Sub-type Article (original research)
DOI 10.1103/PhysRevA.79.012101
Open Access Status File (Publisher version)
Volume 79
Issue 1
Start page 012101-1
End page 012101-7
Total pages 7
Place of publication College Park, MD, United States
Publisher American Physical Society
Collection year 2010
Language eng
Abstract We show that homodyne measurements can be used to demonstrate violations of Bell’s inequality with Gaussian states, when the local rotations used for these types of tests are implemented using nonlinear unitary operations. We reveal that the local structure of the Gaussian state under scrutiny is crucial in the performance of the test. The effects of finite detection efficiency are thoroughly studied and shown to only mildly affect the revelation of Bell violations. We speculate that our approach may be extended to other applications such as entanglement distillation where local operations are necessary elements besides quantum entanglement.
Keyword Bell theorem
Coherent states
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
ERA 2012 Admin Only
 
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Citation counts: TR Web of Science Citation Count  Cited 5 times in Thomson Reuters Web of Science Article | Citations
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Created: Thu, 03 Sep 2009, 18:48:24 EST by Mr Andrew Martlew on behalf of School of Mathematics & Physics