Results 21 to 30 of about 6,544 (296)
Measurement incompatibility and steering are necessary and sufficient for operational contextuality
Physical Review Research, 2020 Contextuality is a signature of operational nonclassicality in the outcome statistics of an experiment. This notion of nonclassicality applies to a breadth of physical phenomena. Here, we establish its relation to two fundamental nonclassical entities in
Armin Tavakoli, Roope Uola
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Resource-theoretic hierarchy of contextuality for general probabilistic theories [PDF]
QuantumIn this work we present a hierarchy of generalized contextuality. It refines the traditional binary distinction between contextual and noncontextual theories, and facilitates their comparison based on how contextual they are.
Lorenzo Catani +2 more
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Contextuality and bundle diagrams [PDF]
, 2018 Contextuality describes the local consistency but global inconsistency of data. In this paper, we review and generalize the bundle diagram representation introduced in [S. Abramsky, R. S. Barbosa, K. Kishida, R. Lal, and S.
Beer, Kerstin, Osborne, Tobias J.
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On the Quantum-like Contextuality of Ambiguous Phrases [PDF]
, 2021 Language is contextual as meanings of words are dependent on their contexts. Contextuality is, concomitantly, a well-defined concept in quantum mechanics where it is considered a major resource for quantum computations.
Abramsky, S +3 more
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Quantum contextuality, causality and freedom of choice. [PDF]
Philos Trans A Math Phys Eng SciThe theme of this issue is ‘Quantum contextuality, causality and freedom of choice.’ Contextuality, including non-locality as its special case, has long since becomeone of the central topics in foundations of quantum mechanics, also making inroads in ...
Abramsky S +3 more
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Sum-of-squares decompositions for a family of noncontextuality inequalities and self-testing of quantum devices [PDF]
Quantum, 2020 Violation of a noncontextuality inequality or the phenomenon referred to `quantum contextuality' is a fundamental feature of quantum theory. In this article, we derive a novel family of noncontextuality inequalities along with their sum-of-squares ...
Debashis Saha +2 more
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Measurement contextuality and Planck’s constant
New Journal of Physics, 2018 Contextuality is a necessary resource for universal quantum computation and non-contextual quantum mechanics can be simulated efficiently by classical computers in many cases. Orders of Planck’s constant, ℏ, can also be used to characterize the classical-
Lucas Kocia, Peter Love
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Contextuality in Neurobehavioural and Collective Intelligence Systems
Quantum Reports, 2021 Contextuality is often described as a unique feature of the quantum realm, which distinguishes it fundamentally from the classical realm. This is not strictly true, and stems from decades of the misapplication of Kolmogorov probability.
William Sulis
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Contextuality‚ cohomology and paradox [PDF]
, 2015 Contextuality is a key feature of quantum mechanics that provides an important non-classical resource for quantum information and computation. Abramsky and Brandenburger used sheaf theory to give a general treatment of contextuality in quantum theory ...
Mansfield, Shane +4 more
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Non-Kochen–Specker Contextuality
Entropy, 2023 Quantum contextuality supports quantum computation and communication. One of its main vehicles is hypergraphs. The most elaborated are the Kochen–Specker ones, but there is also another class of contextual sets that are not of this kind.
Mladen Pavičić
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