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Bell inequalities for position measurements
Linköping University, The Institute of Technology. Linköping University, Department of Mathematics, Applied Mathematics.ORCID iD: 0000-0002-1082-8325
2004 (English)In: Physical Review A, ISSN 1050-2947, Vol. 70, no 2, 022102-1-022102-5 p.Article in journal (Refereed) Published
Abstract [en]

The bits of the binary expansion of position measurement results were used to derive Bell inequalities for position measurements. The output state of the nondegenerate optical parametric amplifier (NOPA) was used to obtain violations of these inequalities. It was shown that the position operator itself, together with other suitable operators, also can be used to violate the Bell inequality, deriving a Bell inequality more suited to the original Einstein-Podolsky-Rosen (EPR) setting. It was concluded that the NOPA state cannot be described by a local realist model, despite having a strictly positive Wigner function.

Place, publisher, year, edition, pages
2004. Vol. 70, no 2, 022102-1-022102-5 p.
National Category
Engineering and Technology
URN: urn:nbn:se:liu:diva-45668DOI: 10.1103/PhysRevA.70.022102OAI: diva2:266564
Available from: 2009-10-11 Created: 2009-10-11 Last updated: 2016-08-31

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Larsson, Jan-Åke
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The Institute of TechnologyApplied Mathematics
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