Measuring Observable Quantum Contextuality
Lecture Notes in Computer Science 9535, 36-47, 2016 Contextuality is a central property in comparative analysis of classical, quantum, and supercorrelated systems. We examine and compare two well-motivated approaches to contextuality. One approach ("contextuality-by-default") is based on t...
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| creator | de Barros, J. Acacio Dzhafarov, Ehtibar N Kujala, Janne V Oas, Gary |
| description | Lecture Notes in Computer Science 9535, 36-47, 2016 Contextuality is a central property in comparative analysis of classical,
quantum, and supercorrelated systems. We examine and compare two well-motivated
approaches to contextuality. One approach ("contextuality-by-default") is based
on the idea that one and the same physical property measured under different
conditions (contexts) is represented by different random variables. The other
approach is based on the idea that while a physical property is represented by
a single random variable irrespective of its context, the joint distributions
of the random variables describing the system can involve negative
(quasi-)probabilities. We show that in the Leggett-Garg and EPR-Bell systems,
the two measures essentially coincide. |
| doi_str_mv | 10.48550/arxiv.1406.3088 |
| format | Article |
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quantum, and supercorrelated systems. We examine and compare two well-motivated
approaches to contextuality. One approach ("contextuality-by-default") is based
on the idea that one and the same physical property measured under different
conditions (contexts) is represented by different random variables. The other
approach is based on the idea that while a physical property is represented by
a single random variable irrespective of its context, the joint distributions
of the random variables describing the system can involve negative
(quasi-)probabilities. We show that in the Leggett-Garg and EPR-Bell systems,
the two measures essentially coincide.</description><identifier>DOI: 10.48550/arxiv.1406.3088</identifier><language>eng</language><subject>Mathematics - Probability ; Physics - Quantum Physics</subject><creationdate>2014-06</creationdate><rights>http://arxiv.org/licenses/nonexclusive-distrib/1.0</rights><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>228,230,776,881</link.rule.ids><linktorsrc>$$Uhttps://arxiv.org/abs/1406.3088$$EView_record_in_Cornell_University$$FView_record_in_$$GCornell_University$$Hfree_for_read</linktorsrc><backlink>$$Uhttps://doi.org/10.48550/arXiv.1406.3088$$DView paper in arXiv$$Hfree_for_read</backlink></links><search><creatorcontrib>de Barros, J. Acacio</creatorcontrib><creatorcontrib>Dzhafarov, Ehtibar N</creatorcontrib><creatorcontrib>Kujala, Janne V</creatorcontrib><creatorcontrib>Oas, Gary</creatorcontrib><title>Measuring Observable Quantum Contextuality</title><description>Lecture Notes in Computer Science 9535, 36-47, 2016 Contextuality is a central property in comparative analysis of classical,
quantum, and supercorrelated systems. We examine and compare two well-motivated
approaches to contextuality. One approach ("contextuality-by-default") is based
on the idea that one and the same physical property measured under different
conditions (contexts) is represented by different random variables. The other
approach is based on the idea that while a physical property is represented by
a single random variable irrespective of its context, the joint distributions
of the random variables describing the system can involve negative
(quasi-)probabilities. We show that in the Leggett-Garg and EPR-Bell systems,
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quantum, and supercorrelated systems. We examine and compare two well-motivated
approaches to contextuality. One approach ("contextuality-by-default") is based
on the idea that one and the same physical property measured under different
conditions (contexts) is represented by different random variables. The other
approach is based on the idea that while a physical property is represented by
a single random variable irrespective of its context, the joint distributions
of the random variables describing the system can involve negative
(quasi-)probabilities. We show that in the Leggett-Garg and EPR-Bell systems,
the two measures essentially coincide.</abstract><doi>10.48550/arxiv.1406.3088</doi><oa>free_for_read</oa></addata></record> |
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| subjects | Mathematics - Probability Physics - Quantum Physics |
| title | Measuring Observable Quantum Contextuality |
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