Results 31 to 40 of about 505 (232)

Bosonic fields in states with undefined particle numbers possess detectable non-contextuality features, plus more

open access: yesNew Journal of Physics, 2022
The paradoxical features of quantum theory are usually formulated for fixed number of particles. While one can now find a formulation of Bell’s theorem for quantum fields, a Kochen–Specker-type reasoning is usually formulated for just one particle, or ...
Konrad Schlichtholz   +2 more
doaj   +1 more source

Non-Kolmogorovian Probabilities and Quantum Technologies

open access: yesEntropy, 2022
In this work, we focus on the philosophical aspects and technical challenges that underlie the axiomatization of the non-Kolmogorovian probability framework, in connection with the problem of quantum contextuality.
Federico Hernán Holik
doaj   +1 more source

Quantum Contextuality with Stabilizer States

open access: yesEntropy, 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
doaj   +1 more source

Interpretable Quantum Advantage in Neural Sequence Learning

open access: yesPRX Quantum, 2023
Quantum neural networks have been widely studied in recent years, given their potential practical utility and recent results regarding their ability to efficiently express certain classical data.
Eric R. Anschuetz   +3 more
doaj   +1 more source

The Classical-Quantum Dichotomy from the Perspective of the Process Algebra

open access: yesEntropy, 2022
The classical-quantum dichotomy is analyzed from the perspective of the Process Algebra approach, which views fundamental phenomena through the lens of complex systems theory and Whitehead’s process theory.
William Sulis
doaj   +1 more source

Contextual approach to quantum mechanics and the theory of the fundamental prespace [PDF]

open access: yesJournal of Mathematical Physics, 2004
We constructed a Hilbert space representation of a contextual Kolmogorov model. This representation is based on two fundamental observables—in the standard quantum model these are the position and momentum observables. This representation has all distinguishing features of the quantum model.
openaire   +3 more sources

Non-Classical Correlations in n-Cycle Setting

open access: yesEntropy, 2019
Quantum communication and quantum computation form the two crucial facets of quantum information theory. While entanglement and its manifestation as Bell non-locality have been proved to be vital for communication tasks, contextuality (a generalisation ...
Kishor Bharti   +2 more
doaj   +1 more source

Locality Is Dead! Long Live Locality!

open access: yesFrontiers in Physics, 2020
Several decades of theory and experiment into EPR correlations have led to the widely held belief that reality is non-local, in spite of the fact that this violates special relativity.
William Sulis
doaj   +1 more source

Spectral Presheaves, Kochen-Specker Contextuality, and Quantale-Valued Relations [PDF]

open access: yesElectronic Proceedings in Theoretical Computer Science, 2018
In the topos approach to quantum theory of Doering and Isham the Kochen–Specker Theorem, which asserts the contextual nature of quantum theory, can be reformulated in terms of the global sections of a presheaf characterised by the Gelfand spectrum of
Kevin Dunne
doaj   +1 more source

An Intensional Probability Theory: Investigating the Link between Classical and Quantum Probabilities

open access: yesMathematics, 2022
The link between classical and quantum theories is discussed in terms of extensional and intensional viewpoints. The paper aims to bring evidence that classical and quantum probabilities are related by intensionalization, which means that by abandoning ...
Miloš Milovanović, Nicoletta Saulig
doaj   +1 more source

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