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Tests of quantum contextuality in particle physics

Physical Review D
Quantum contextuality refers to the impossibility of assigning a predefined, intrinsic value to a physical property of a system independently of the context in which the property is measured.
M. Fabbrichesi   +3 more
semanticscholar   +1 more source

Quantum contextuality of spin-1 massive particles

Physical Review A
Contextuality is a fundamental property of quantum mechanics. Contrary to entanglement, which can only exist in composite systems, contextuality is also present for single entities.
M. Fabbrichesi   +3 more
semanticscholar   +1 more source

IS QUANTUM MECHANICS CONTEXTUAL?

The Foundations of Quantum Mechanics, 2000
The epistemological position underlying the standard interpretation of Quantum Mechanics (QM) can be classified as empirical verificationism (nontestable physical statements have no meaning) . This position can be argued to be responsible for m any puzzling features and "paradoxes" of QM. Nevertheless, it seems soundly based on the Bell-Kochen-Specker (
openaire   +2 more sources

Quantum contextuality requiring counterfactual gain

Physical Review A
Quantum contextuality, where measurement outcomes depend on the measurement context, implies a failure of classical realism in quantum systems. As recently shown, the transition between measurement contexts can be mapped onto the path that a quantum ...
Y. Sagawa   +3 more
semanticscholar   +1 more source

Quantum-Classical Separation in Bounded-Resource Tasks Arising from Measurement Contextuality

arXiv.org
The prevailing view is that quantum phenomena can be harnessed to tackle certain problems beyond the reach of classical approaches. Quantifying this capability as a quantum-classical separation and demonstrating it on current quantum processors has ...
AI GoogleQuantum
semanticscholar   +1 more source

Stronger Quantum Contextuality

Conference on Lasers and Electro-Optics, 2020
We theoretically introduce a family of Hardy-like proofs which lead to stronger noncontextuality inequalities than that of extended KCBS. Meanwhile, we experimentally verify the simplest case of Hardy-like proof based on a fourdimensional photonic system.
Wen-Rong Qi   +7 more
openaire   +1 more source

Quantum-Like Contextuality in Large Language Models

arXiv.org
Contextuality is a distinguishing feature of quantum mechanics and there is growing evidence that it is a necessary condition for quantum advantage. In order to make use of it, researchers have been asking whether similar phenomena arise in other domains.
K. Lo, M. Sadrzadeh, Shane Mansfield
semanticscholar   +1 more source

Unscrambling the Omelette of Quantum Contextuality (Part I): Preexistent Properties or Measurement Outcomes?

Foundations of Science, 2016
In this paper we attempt to analyze the physical and philosophical meaning of quantum contextuality. We will argue that there exists a general confusion within the foundational literature arising from the improper “scrambling” of two different meanings ...
C. Ronde
semanticscholar   +1 more source

Contextuality in quantum systems

American Journal of Physics, 1994
The logic of the EPR argument is applied, not to two particles in a line but to one particle in a plane. Contextuality (defined here as a generalization of the notion of nonseparability) among commuting observables is shown to emerge as a result, i.e., although the two orthogonal coordinates characterizing the position of a particle commute ...
openaire   +1 more source

Quantum Contextuality and Locality

2020
Στην παρούσα διπλωματική εργασία μελετήσαμε τις έννοιες του κβαντικού πλαισίου και της τοπικότητας. Αρχικά παραθέτουμε μία παρουσίαση των εννοιών και ακολουθεί μια παρουσίαση των σημαντικότερων θεωρημάτων σχετικών με το θέμα, δηλαδή του θεωρήματος του Bell και του θεωρήματος των Kochen και Specker. Κατόπιν, προσεγγίζουμε τις προαναφερθείσες έννοιες από
openaire   +1 more source

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