Results 31 to 40 of about 20,860 (278)

Contextuality in Neurobehavioural and Collective Intelligence Systems

open access: yesQuantum 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
doaj   +1 more source

An Order-Theoretic Quantification of Contextuality

open access: yesInformation, 2014
In this essay, I develop order-theoretic notions of determinism and contextuality on domains and topoi. In the process, I develop a method for quantifying contextuality and show that the order-theoretic sense of contextuality is analogous to the sense ...
Ian T. Durham
doaj   +1 more source

Contextuality as a resource for measurement-based quantum computation beyond qubits

open access: yesNew Journal of Physics, 2018
Contextuality—the obstruction to describing quantum mechanics in a classical statistical way—has been proposed as a resource that powers quantum computing.
Markus Frembs   +2 more
doaj   +1 more source

Contextuality in Classical Physics and Its Impact on the Foundations of Quantum Mechanics

open access: yesEntropy, 2021
It is shown that the hallmark quantum phenomenon of contextuality is present in classical statistical mechanics (CSM). It is first shown that the occurrence of contextuality is equivalent to there being observables that can differentiate between pure and
Fritiof Wallentin
doaj   +1 more source

State independent contextuality advances one-way communication

open access: yesNew Journal of Physics, 2019
Although ‘quantum contextuality’ is one of the most fundamental non-classical feature, its generic role in information processing and computation is an open quest.
Debashis Saha   +2 more
doaj   +1 more source

Experimental test of contextuality in quantum and classical systems

open access: yes, 2019
Contextuality is considered as an intrinsic signature of non-classicality, and a crucial resource for achieving unique advantages of quantum information processing.
Kim, M. S.   +6 more
core   +1 more source

Contextuality as a resource for models of quantum computation on qubits [PDF]

open access: yes, 2017
A central question in quantum computation is to identify the resources that are responsible for quantum speed-up. Quantum contextuality has been recently shown to be a resource for quantum computation with magic states for odd-prime dimensional qudits ...
Bermejo-Vega, Juan   +4 more
core   +7 more sources

Uniqueness of all fundamental noncontextuality inequalities

open access: yesPhysical Review Research, 2020
Contextuality is one way of capturing the nonclassicality of quantum theory. The contextual nature of a theory is often witnessed via the violation of noncontextuality inequalities—certain linear inequalities involving probabilities of measurement events.
Kishor Bharti   +3 more
doaj   +1 more source

The rank of contextuality

open access: yesNew Journal of Physics, 2023
Quantum contextuality is one of the most recognized resources in quantum communication and computing scenarios. We provide a new quantifier of this resource, the rank of contextuality (RC).
Karol Horodecki   +8 more
doaj   +1 more source

The Problem of Contextuality and the Impossibility of Experimental Metaphysics Thereof

open access: yes, 2010
Recently a new impulse has been given to the experimental investigation of contextuality. In this paper we show that for a widely used definition of contextuality there can be no decisive experiment on the existence of contextuality. To this end, we give
Amselem   +34 more
core   +1 more source

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