Results 41 to 50 of about 3,154,091 (250)
A histories perspective on characterizing quantum non-locality [PDF]
, 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
Quantum measurements and contextuality [PDF]
Philosophical 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
Contextual logic for quantum systems [PDF]
Journal 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
Twenty years of quantum contextuality at USTC [PDF]
, 2022 Quantum contextuality is one of the most perplexing and peculiar features of quantum mechanics. Concisely, it refers to the observation that the result of a single measurement in quantum mechanics depends on the set of joint measurements actually ...
Li, Qiang +6 more
core +2 more sources
Implications of Quantum Automata for Contextuality [PDF]
, 2014 22 ...
Jibran Rashid, Abuzer Yakaryilmaz
openaire +2 more sources
Quantum contextuality requiring counterfactual gain [PDF]
Physical Review AQuantum 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
Popper, Bohr et la contextualité de la mécanique quantique
Philosophia 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]
Physical 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
Causation does not explain contextuality [PDF]
Quantum, 2018 Realist interpretations of quantum mechanics presuppose the existence of elements of reality that are independent of the actions used to reveal them. Such a view is challenged by several no-go theorems that show quantum correlations cannot be explained ...
Sally Shrapnel, Fabio Costa
doaj +1 more source