It from Qubit: How to Draw Quantum Contextuality
نویسندگان
چکیده
منابع مشابه
It from Qubit: How to Draw Quantum Contextuality
Wheeler’s observer-participancy and the related it from bit credo refer to quantum non-locality and contextuality. The mystery of these concepts slightly starts unveiling if one encodes the (in)compatibilities between qubit observables in the relevant finite geometries. The main objective of this treatise is to outline another conceptual step forward by employing Grothendieck’s dessins d’enfant...
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We present a protocol to evaluate the expectation value of the correlations of measurement outcomes for ensembles of quantum systems, and use it to experimentally demonstrate--under an assumption of fair sampling--the violation of an inequality that is satisfied by any noncontextual hidden-variables theory. The experiment is performed on an ensemble of molecular nuclear spins in the solid state...
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1: Department of Physics and Astronomy, University of British Columbia, Vancouver, BC, Canada, 2: Department of Physics and Astronomy, University College London, Gower Street, London, UK, 3: Département de Physique, Université de Sherbrooke, Sherbrooke, Québec, Canada, 4: IQIM, California Institute of Technology, Pasadena, CA, USA, 5: Department of Physics and Astronomy, University of Californi...
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1: Department of Physics and Astronomy, University of British Columbia, Vancouver, BC, Canada, 2: Department of Physics and Astronomy, University College London, Gower Street, London, UK, 3: Département de Physique, Université de Sherbrooke, Sherbrooke, Québec, Canada, 4: IQIM, California Institute of Technology, Pasadena, CA, USA, 5: Department of Physics and Astronomy, University of Californi...
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Quantum mechanics is contextual, that is, the outcome of a measurement does depend on how that value is measured. This somewhat bizarre, non-classical feature is a consequence of the Kochen-Specker theorem, which asserts that there is no non-contextual hidden variable theory that reproduces quantum theory. Contextuality is a property of quantum systems with Hilbert spaces of d > 2, as it can be...
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ژورنال
عنوان ژورنال: Information
سال: 2014
ISSN: 2078-2489
DOI: 10.3390/info5020209