Random Constructions in Bell Inequalities: A Survey
نویسندگان
چکیده
منابع مشابه
On Bell inequalities for random fields
The assumptions required for the derivation of Bell inequalities are not usually satisfied for random fields in which there are non-zero thermal or quantum fluctuations, in contrast to the general satisfaction of the assumptions in the classical two point particle case. In the absence of Bell inequalities, random field theories that include quantum fluctuations explicitly may be introduced wher...
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The first part of this paper contains an introduction to Bell inequalities and Tsirelson’s theorem for the non-specialist. The next part gives an explicit optimum construction for the “hard” part of Tsirelson’s theorem. In the final part we describe how upper bounds on the maximal quantum violation of Bell inequalities can be obtained by an extension of Tsirelson’s theorem, and survey very rece...
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According to recent reports, the last loopholes in testing Bell’s inequality are closed. It is argued that the really important task in this field has not been tackled yet and that the leading experiments claiming to close locality and detection efficiency loopholes, although making very significant progress, have conceptual drawbacks. The important task is constructing quantum devices which wi...
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A Bell inequality defined for a specific experimental configuration can always be extended to a situation involving more observers, measurement settings, or measurement outcomes. In this article, such “liftings” of Bell inequalities are studied. It is shown that if the original inequality defines a facet of the polytope of local joint outcome probabilities then the lifted one also defines a fac...
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Quantum error-correcting codes can protect multipartite quantum states from errors on some limited number of their subsystems (usually qubits). We construct a family of Bell inequalities which inherit this property from the underlying code and exhibit the violation of local realism, without any quantum information processing (except for the creation of an entangled state). This family shows no ...
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ژورنال
عنوان ژورنال: Foundations of Physics
سال: 2018
ISSN: 0015-9018,1572-9516
DOI: 10.1007/s10701-017-0135-y