Results 21 to 30 of about 20,860 (278)
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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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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Kantian Review, 2018 AbstractThis article builds on David Velleman’s recent work on moral relativism to argue that Kant’s account of moral judgement is best read in a contextualist manner. More specifically, I argue that while for Kant the form of moral judgement is invariant, substantive moral judgements are nonetheless context-dependent.
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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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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 without Incompatibility
Physical Review Letters, 2023 The existence of incompatible measurements is often believed to be a feature of quantum theory which signals its inconsistency with any classical worldview. To prove the failure of classicality in the sense of Kochen-Specker noncontextuality, one does indeed require sets of incompatible measurements.
John H. Selby +5 more
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Optimal and tight Bell inequalities for state-independent contextuality sets
Physical Review Research, 2023 Two fundamental quantum resources, nonlocality and contextuality, can be connected through Bell inequalities that are violated by state-independent contextuality (SI-C) sets.
Junior R. Gonzales-Ureta +2 more
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A mathematical framework for operational fine tunings [PDF]
Quantum, 2023 In the framework of ontological models, the inherently nonclassical features of quantum theory always seem to involve properties that are fine tuned, i.e. properties that hold at the operational level but break at the ontological level.
Lorenzo Catani, Matthew Leifer
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Contextuality and Wigner function negativity in qubit quantum computation [PDF]
, 2017 We describe a scheme of quantum computation with magic states on qubits for which contextuality is a necessary resource possessed by the magic states.
Bermejo-Vega, Juan +4 more
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