Angular EPR paradox

Götte, J.B. , Franke-arnold, S. and Barnett, S. (2006) Angular EPR paradox. Journal of Modern Optics, 53(5-6), pp. 627-645.

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The violation of local uncertainty relations is a valuable tool for detecting entanglement, especially in multi-dimensional systems. The orbital angular momentum of light provides such a multi-dimensional system. We study quantum correlations for the conjugate variables of orbital angular momentum and angular position. We determine an experimentally testable criterion for the demonstration of an angular version of the EPR paradox. For the interpretation of future experimental results from our proposed setup, we include a model for the indeterminacies inherent to the angular position measurement. For this measurement angular apertures are used to determine the probability density of the angle. We show that for a class of aperture functions a demonstration of an angular EPR paradox, according to our criterion, is to be expected.

Item Type:Articles
Glasgow Author(s) Enlighten ID:Franke-Arnold, Professor Sonja and Goette, Dr Joerg and Barnett, Professor Stephen
Authors: Götte, J.B., Franke-arnold, S., and Barnett, S.
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:Journal of Modern Optics
Publisher:Taylor and Francis
ISSN (Online):1362-3044
Published Online:27 February 2007

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