Hardy's paradox and violation of a state-independent bell inequality in time

Fedrizzi, Alessandro, Almeida, Marcelo P., Broome, Matthew A., White, Andrew G. and Barbieri, Marco (2011) Hardy's paradox and violation of a state-independent bell inequality in time. Physical Review Letters, 106 20: Article number 100401. doi:10.1103/PhysRevLett.106.200402

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Author Fedrizzi, Alessandro
Almeida, Marcelo P.
Broome, Matthew A.
White, Andrew G.
Barbieri, Marco
Title Hardy's paradox and violation of a state-independent bell inequality in time
Journal name Physical Review Letters   Check publisher's open access policy
ISSN 0031-9007
Publication date 2011-05
Sub-type Article (original research)
DOI 10.1103/PhysRevLett.106.200402
Open Access Status File (Publisher version)
Volume 106
Issue 20
Start page Article number 100401
Total pages 4
Place of publication United States
Publisher American Physical Society
Collection year 2012
Language eng
Abstract Tests such as Bell’s inequality and Hardy’s paradox show that joint probabilities and correlations between distant particles in quantum mechanics are inconsistent with local realistic theories. Here we experimentally demonstrate these concepts in the time domain, using a photonic entangling gate to perform nondestructive measurements on a single photon at different times. We show that Hardy’s paradox is much stronger in time and demonstrate the violation of a temporal Bell inequality independent of the quantum state, including for fully mixed states.
Keyword Quantum-Mechanics
Hidden Variables
Entangled States
Nonlocality
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
Official 2012 Collection
 
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Citation counts: TR Web of Science Citation Count  Cited 16 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 16 times in Scopus Article | Citations
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