Violation of Bell's inequalities with preamplified homodyne detection

Torlai, G., McKeown, G., Marek, P., Filip, R., Jeong, H., Paternostro, M. and De Chiara, G. (2013) Violation of Bell's inequalities with preamplified homodyne detection. Physical Review A, 87 5: 052112.1-052112.6. doi:10.1103/PhysRevA.87.052112

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Author Torlai, G.
McKeown, G.
Marek, P.
Filip, R.
Jeong, H.
Paternostro, M.
De Chiara, G.
Title Violation of Bell's inequalities with preamplified homodyne detection
Journal name Physical Review A   Check publisher's open access policy
ISSN 1050-2947
1094-1622
1538-4446
Publication date 2013-05
Sub-type Article (original research)
DOI 10.1103/PhysRevA.87.052112
Open Access Status File (Publisher version)
Volume 87
Issue 5
Start page 052112.1
End page 052112.6
Total pages 6
Place of publication United States
Publisher American Physical Society
Collection year 2014
Language eng
Formatted abstract
We show that the use of probabilistic noiseless amplification in entangled coherent state-based schemes for the test of quantum nonlocality provides substantial advantages. The threshold amplitude to falsify a Bell-CHSH nonlocality test, in fact, is significantly reduced when amplification is embedded into the test itself. Such a beneficial effect holds also in the presence of detection inefficiency. Our study helps in affirming noiseless amplification as a valuable tool for coherent information processing and the generation of strongly nonclassical states of bosonic systems.
Keyword Quantum nonlocality
Coherent states
Entanglement
Noise
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
Centre for Quantum Computer Technology Publications
Official 2014 Collection
 
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Citation counts: TR Web of Science Citation Count  Cited 8 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 7 times in Scopus Article | Citations
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Created: Sun, 16 Jun 2013, 00:09:02 EST by System User on behalf of Quantum Computation and Communication Technology