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Nonlocality of a single particle

Dunningham, J. and Vedral, V. (2007) Nonlocality of a single particle. Physical Review Letters, 99 (18). p. 180404. ISSN 1079-7114

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Abstract

There has been a great deal of debate surrounding the issue of whether it is possible for a single photon to exhibit nonlocality. A number of schemes have been proposed that claim to demonstrate this effect, but each has been met with significant opposition. The objections hinge largely on the fact that these schemes use unobservable initial states and so, it is claimed, they do not represent experiments that could actually be performed. Here we show how it is possible to overcome these objections by presenting an experimentally feasible scheme that uses realistic initial states. Furthermore, all the techniques required for photons are equally applicable to atoms. It should, therefore, also be possible to use this scheme to verify the nonlocality of a single massive particle.

Item Type: Article
Copyright, Publisher and Additional Information: © 2007 American Physical Society. This is an author produced version of a paper published in Physical Review Letters. Uploaded in accordance with the publisher's self-archiving policy.
Institution: The University of Leeds
Academic Units: The University of Leeds > Faculty of Maths and Physical Sciences (Leeds) > School of Physics and Astronomy (Leeds)
Depositing User: Sherpa Assistant
Date Deposited: 20 Dec 2007 14:47
Last Modified: 05 Jun 2014 04:32
Published Version: http://dx.doi.org/10.1103/PhysRevLett.99.180404
Status: Published
Publisher: American Physical Society
Refereed: Yes
Identification Number: 10.1103/PhysRevLett.99.180404
URI: http://eprints.whiterose.ac.uk/id/eprint/3549

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