Results 61 to 70 of about 3,154,091 (250)
Optimal Classical Simulation of State-Independent Quantum Contextuality. [PDF]
Physical Review Letters, 2017 Simulating quantum contextuality with classical systems requires memory. A fundamental yet open question is what is the minimum memory needed and, therefore, the precise sense in which quantum systems outperform classical ones. Here, we make rigorous the
A. Cabello +3 more
semanticscholar +1 more source
The cohomological and the resource-theoretic perspective on quantum contextuality: common ground through the contextual fraction [PDF]
Quantum information & computation, 2018 We unify the resource-theoretic and the cohomological perspective on quantum contextuality. At the center of this unification stands the notion of the contextual fraction.
Cihan Okay +2 more
semanticscholar +1 more source
An Order-Theoretic Quantification of Contextuality
Information, 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
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Uniqueness of all fundamental noncontextuality inequalities
Physical 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
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Measuring Observable Quantum Contextuality [PDF]
, 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 ...
José Acácio de Barros +3 more
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Contextuality and Indistinguishability
Entropy, 2017 It is well known that in quantum mechanics we cannot always define consistently properties that are context independent. Many approaches exist to describe contextual properties, such as Contextuality by Default (CbD), sheaf theory, topos theory, and non ...
José Acacio de Barros +2 more
doaj +1 more source
Hierarchies of resources for measurement-based quantum computation
New Journal of Physics, 2023 For certain restricted computational tasks, quantum mechanics provides a provable advantage over any possible classical implementation. Several of these results have been proven using the framework of measurement-based quantum computation (MBQC), where ...
Markus Frembs +3 more
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Contextual viewpoint to quantum stochastics [PDF]
Journal of Mathematical Physics, 2003 We study the role of context, complex of physical conditions, in quantum as well as classical experiments. It is shown that by taking into account contextual dependence of experimental probabilities we can derive the quantum rule for the addition of probabilities of alternatives.
openaire +2 more sources
New Journal of Physics, 2023 Contextuality is a striking feature of our nature predicted by quantum theory and tested by various experiments. In a qubit system, testing contextuality requires scenarios distinct from traditional ones for systems with dimension of three or greater. In
Meng Yan, Hao-Zhan Zou, Xiang Zhan
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Advanced Materials, EarlyView.The perspective presents an integrated view of neuromorphic technologies, from device physics to real‐time applicability, while highlighting the necessity of full‐stack co‐optimization. By outlining practical hardware‐level strategies to exploit device behavior and mitigate non‐idealities, it shows pathways for building efficient, scalable, and ...
Kapil Bhardwaj +8 more
wiley +1 more source