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Violation of Bell's Inequality Using Continuous Variable Measurements

Thearle, Oliver; Janousek, Jiri; Armstrong, Seiji; Hosseini, Sara; Schünemann, Melaine; Assad, Syed; Symul, Thomas; James, Matthew; Huntington, Elanor; Ralph, Timothy Cameron; Lam, Ping Koy


A Bell inequality is a fundamental test to rule out local hidden variable model descriptions of correlations between two physically separated systems. There have been a number of experiments in which a Bell inequality has been violated using discrete-variable systems. We demonstrate a violation of Bell’s inequality using continuous variable quadrature measurements. By creating a four-mode entangled state with homodyne detection, we recorded a clear violation with a Bell value of B=2.31±0.02....[Show more]

CollectionsANU Research Publications
Date published: 2018
Type: Journal article
Source: Physical Review Letters
DOI: 10.1103/PhysRevLett.120.040406
Access Rights: Open Access


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