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Nonlinear entanglement and its application to generating cat states

Shen, Y.; Assad, S. M.; Grosse, N. B.; Li, X. Y.; Reid, M. D.; Lam, P. K.


The Einstein-Podolsky-Rosen (EPR) paradox, which was formulated to argue for the incompleteness of quantum mechanics, has since metamorphosed into a resource for quantum information. The EPR entanglement describes the strength of linear correlations between two objects in terms of a pair of conjugate observables in relation to the Heisenberg uncertainty limit. We propose that entanglement can be extended to include nonlinear correlations. We examine two driven harmonic oscillators that are...[Show more]

CollectionsANU Research Publications
Date published: 2015-03-13
Type: Journal article
Source: Physical Review Letters
DOI: 10.1103/PhysRevLett.114.100403


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