Nonlocality of a single photon: Paths to an Einstein-Podolsky-Rosen-steering experiment

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Title Nonlocality of a single photon: Paths to an Einstein-Podolsky-Rosen-steering experiment
Author Jones, Steve James; Wiseman, Howard Mark
Journal Name Physical Review A
Year Published 2011
Place of publication United States
Publisher American Physical Society
Abstract A single-photon incident on a beam splitter produces an entangled field state, and in principle could be used to violate a Bell inequality, but such an experiment (without postselection) is beyond the reach of current experiments. Here we consider the somewhat simpler task of demonstrating Einstein-Podolsky-Rosen (EPR) steering with a single photon (also without postselection). We demonstrate that Alice’s choice of measurement on her portion of the entangled state can affect Bob’s portion of the entangled state in his laboratory, in a sense rigorously defined by us and Doherty [ Phys. Rev. Lett. 98 140402 (2007)]. Previous work by Lvovsky and coworkers [ Phys. Rev. Lett. 92 047903 (2004)] has addressed this phenomenon (which they called remote preparation) experimentally using homodyne measurements on a single photon. Here we show that, unfortunately, their experimental parameters do not meet the bounds necessary for a rigorous demonstration of EPR steering with a single photon. However, we also show that modest improvements in the experimental parameters, and the addition of photon counting to the arsenal of Alice’s measurements, would be sufficient to allow such a demonstration.
Peer Reviewed Yes
Published Yes
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Copyright Statement Copyright 2011 American Physical Society. This is the author-manuscript version of this paper. Reproduced in accordance with the copyright policy of the publisher. Please refer to the journal's website for access to the definitive, published version.
Volume 84
Issue Number 1
Page from 012110-1
Page to 012110-11
ISSN 1050-2947
Date Accessioned 2011-09-21
Language en_US
Research Centre Centre for Quantum Dynamics
Faculty Faculty of Science, Environment, Engineering and Technology
Subject Quantum Information, Computation and Communication; Quantum Optics; Quantum Physics
Publication Type Journal Articles (Refereed Article)
Publication Type Code c1

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