Results 51 to 60 of about 4,670 (139)
Bound non-locality and activation
, 2010 We investigate non-locality distillation using measures of non-locality based on the Elitzur-Popescu-Rohrlich decomposition. For a certain number of copies of a given non-local correlation, we define two quantities of interest: (i) the non-local cost ...
Alejo Salles +4 more
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, 2015 It is a recent realization that many of the concepts and tools of causal discovery in machine learning are highly relevant to problems in quantum information, in particular quantum nonlocality. The crucial ingredient in the connection between both fields
Chaves, Rafael
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Family of Bell inequalities violated by higher-dimensional bound entangled states [PDF]
, 2017 We construct ($d\times d$)-dimensional bound entangled states, which violate, for any $d>2$, a bipartite Bell inequality introduced in this paper. We conjecture that the proposed class of Bell inequalities acts as a dimension witness for bound entangled ...
Pal, Karoly F, Vertesi, Tamas
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Semi-device-independent characterization of quantum measurements under a minimum overlap assumption
, 2019 Recently, a novel framework for semi-device-independent quantum prepare-and-measure protocols has been proposed, based on the assumption of a limited distinguishability between the prepared quantum states.
Brask, Jonatan Bohr +4 more
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Mutually unbiased bases: polynomial optimization and symmetry [PDF]
QuantumA set of $k$ orthonormal bases of $\mathbb C^d$ is called mutually unbiased if $|\langle e,f\rangle |^2 = 1/d$ whenever $e$ and $f$ are basis vectors in distinct bases. A natural question is for which pairs $(d,k)$ there exist $k$ mutually unbiased bases
Sander Gribling, Sven Polak
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Random 'choices' and the locality loophole
, 2014 It has been claimed that to close the locality loophole in a Bell experiment, random numbers of quantum origin should be used for selecting the measurement settings.
Pironio, Stefano
core
, 2019 Bell inequalities are an important tool in device-independent quantum information processing because their violation can serve as a certificate of relevant quantum properties. Probably the best known example of a Bell inequality is due to Clauser, Horne,
Augusiak, Remigiusz +5 more
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Self-testing tilted strategies for maximal loophole-free nonlocality
npj Quantum InformationThe degree of experimentally attainable nonlocality, as gauged by the loophole-free or effective violation of Bell inequalities, remains severely limited due to inefficient detectors.
Nicolas Gigena +5 more
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A paradox in bosonic energy computations via semidefinite programming relaxations
New Journal of Physics, 2013 We show that the recent hierarchy of semidefinite programming relaxations based on non-commutative polynomial optimization and reduced density matrix variational methods exhibits an interesting paradox when applied to the bosonic case: even though it can
M Navascués +4 more
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Pironio, Mons. Eduardo, Escritos Pastorales. Ed. BAC. 1 vol. de 262 pgs. 122x200. Madrid 1973
, 1978 Theologica, v. 13 n. 3-4 (1978)
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