Results 31 to 40 of about 1,575 (276)

Noise-robust preparation contextuality shared between any number of observers via unsharp measurements [PDF]

open access: yesQuantum, 2021
Multiple observers who independently harvest nonclassical correlations from a single physical system share the system's ability to enable quantum correlations.
Hammad Anwer   +5 more
doaj   +1 more source

A histories perspective on characterizing quantum non-locality [PDF]

open access: yes, 2014
We introduce a framework for studying non-locality and contextuality inspiredby the path integral formulation of quantum theory. We prove that the existenceof a strongly positive joint quantum measure— the quantum analogue of a jointprobability measure —
Dowker, Fay   +3 more
core   +1 more source

Contextuality and the fundamental theorems of quantum mechanics

open access: yes, 2022
Contextuality is a key feature of quantum mechanics, as was first brought to light by Bohr [Albert Einstein: Philosopher-Scientist, Library of Living Philosophers Vol. VII, edited by P. A. Schilpp (Open Court, 1998), pp.
Frembs, Markus   +3 more
core   +1 more source

Quantum measurements and contextuality [PDF]

open access: yesPhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2019
In quantum physics, the term ‘contextual’ can be used in more than one way. One usage, here called ‘Bell contextual’ since the idea goes back to Bell, is that if A , B and C are three quantum observables, with A compatible (i.e. commuting) with
openaire   +4 more sources

Contextuality and quantum discord

open access: yesPhysics Letters A, 2022
5 pages, 1 ...
openaire   +2 more sources

Contextual logic for quantum systems [PDF]

open access: yesJournal of Mathematical Physics, 2004
In this work we build a quantum logic that allows us to refer to physical magnitudes pertaining to different contexts from a fixed one without the contradictions with quantum mechanics expressed in no-go theorems. This logic arises from considering a sheaf over a topological space associated with the Boolean sublattices of the ortholattice of closed ...
Domenech G, FREYTES, HECTOR CARLOS
openaire   +4 more sources

Golay codes and quantum contextuality

open access: yesPhysical 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. Some implications of these results are discussed.
Mordecai Waegell, P. K. Aravind
openaire   +3 more sources

Implications of Quantum Automata for Contextuality [PDF]

open access: yes, 2014
22 ...
Jibran Rashid, Abuzer Yakaryilmaz
openaire   +2 more sources

Popper, Bohr et la contextualité de la mécanique quantique

open access: yesPhilosophia Scientiæ, 2021
During his intellectual life, Karl Popper blamed Niels Bohr for defending subjectivist theses about Quantum Mechanics and for introducing the concept of subject in physics. But Popper’s accusation contradicts Bohr’s texts.
Sébastien Poinat
doaj   +1 more source

Entropic Test of Quantum Contextuality [PDF]

open access: yesPhysical Review Letters, 2012
We study the contextuality of a three-level quantum system using classical conditional entropy of measurement outcomes. First, we analytically construct the minimal configuration of measurements required to reveal contextuality. Next, an entropic contextual inequality is formulated, analogous to the entropic Bell inequalities derived by Braunstein and ...
Kurzyński, P.   +2 more
openaire   +3 more sources

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