Results 11 to 20 of about 1,946,337 (286)
Quantum contextuality in the Copenhagen approach
Philosophical Transactions Series A, Mathematical, Physical, and Engineering Sciences, 2019 The origin and basis of the notion of quantum contextuality is identified in the Copenhagen approach to quantum mechanics, where context is automatically invoked by its requirement that the experimental arrangement involved in any measurements or set of ...
Gregg S Jaeger
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Golay codes and quantum contextuality [PDF]
Physical Review A, 2022 It is shown that the codewords of the binary and ternary Golay codes can be converted into rays in RP(23) and RP(11) that provide proofs of the Kochen-Specker theorem in real state spaces of dimension 24 and 12, respectively.
Mordecai Waegell, P. Aravind
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Revisiting Quantum Contextuality in an Algebraic Framework. [PDF]
Journal of Physics: Conference Series, 2023 Within the framework of quantum contextuality, we discuss the ideas of extracontextuality and extravalence, that allow one to relate Kochen-Specker’s and Gleason’s theorems.
M. Bossche, P. Grangier
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State-independent quantum contextuality with projectors of nonunit rank [PDF]
New Journal of Physics, 2021 Virtually all of the analysis of quantum contextuality is restricted to the case where events are represented by rank-one projectors. This restriction is arbitrary and not motivated by physical considerations.
Zhen-Peng Xu +2 more
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Contextuality in Classical Physics and Its Impact on the Foundations of Quantum Mechanics
Entropy, 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
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Classical Causal Models for Bell and Kochen-Specker Inequality Violations Require Fine-Tuning
Physical Review X, 2018 Nonlocality and contextuality are at the root of conceptual puzzles in quantum mechanics, and they are key resources for quantum advantage in information-processing tasks.
Eric G. Cavalcanti
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Quantum Contextuality with Stabilizer States [PDF]
Entropy, 2013 The Pauli groups are ubiquitous in quantum information theory because of their usefulness in describing quantum states and operations and their readily understood symmetry properties.
Jiri Vala, Eoin Brennan, Mark Howard
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Contextuality of Quantum Error-Correcting Codes
PRX QuantumFault-tolerant quantum computation requires quantum error correction (QEC), which relies on entanglement to protect information from local noise. Achieving universality, however, demands overcoming the Eastin-Knill theorem.
Derek Khu +3 more
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Separability, Contextuality, and the Quantum Frame Problem [PDF]
International Journal of Theoretical Physics, 2023 We study the relationship between assumptions of state separability and both preparation and measurement contextuality, and the relationship of both of these to the frame problem, the problem of predicting what does not change in consequence of an action.
C. Fields, J. Glazebrook
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Violation of Leggett–Garg Inequality in Perceiving Cup-like Objects and Cognitive Contextuality [PDF]
EntropyThis paper is devoted to an experimental investigation of cognitive contextuality inspired by quantum contextuality research. This contextuality is related to, but not identical to context-sensitivity which is well-studied in cognitive psychology and ...
Likan Zhan +2 more
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