Results 21 to 30 of about 9,786 (198)
Exposure of subtle multipartite quantum nonlocality
npj Quantum Information, 2021 The celebrated Einstein–Podolsky–Rosen quantum steering has a complex structure in the multipartite scenario. We show that a naively defined criterion for multipartite steering allows, like in Bell nonlocality, for a contradictory effect whereby local ...
M. M. Taddei +5 more
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SciPost Physics Core, 2023 It has recently been shown that by broadcasting the subsystems of a bipartite quantum state, one can activate Bell nonlocality and significantly improve noise tolerance bounds for device-independent entanglement certification.
Emanuel-Cristian Boghiu, Flavien Hirsch, Pei-Sheng Lin, Marco Túlio Quintino, Joseph Bowles
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Recycling nonlocality in quantum star networks
Physical Review Research, 2023 The nonlocality of an entangled qubit pair can be recycled for several Bell experiments. Here, we go beyond standard Bell scenarios and investigate the recycling of nonlocal resources in a quantum network.
Ya-Li Mao +8 more
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Exploring Multipartite Steering Effect Using Bell Operators
Entropy, 2019 While Bell operators are exploited in detecting Bell nonlocality and entanglement classification, we demonstrate their usefulness in exploring Einstein−Podolsky−Rosen (EPR) steering, which represents the quantum correlation intermediate ...
Li-Yi Hsu, Shoichi Kawamoto
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Nonlocality in many-body quantum systems detected with two-body correlators [PDF]
, 2015 Contemporary understanding of correlations in quantum many-body systems and in quantum phase transitions is based to a large extent on the recent intensive studies of entanglement in many-body systems.
Acín, A. +6 more
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Bell inequalities for nonlocality depth
Physical Review A, 2023 When three or more particles are considered, quantum correlations can be stronger than the correlations generated by so-called hybrid local hidden variable models, where some of the particles are considered as a single block inside which communication and signaling is allowed. We provide an exhaustive classification of Bell inequalities to characterize
Fabian Bernards, Otfried Gühne
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Nonlocality and entanglement in the XY model [PDF]
, 2010 Nonlocality and quantum entanglement constitute two special features of quantum systems of paramount importance in quantum information theory (QIT).
A. Peres +7 more
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Classical causal models cannot faithfully explain Bell nonlocality or Kochen-Specker contextuality in arbitrary scenarios [PDF]
Quantum, 2021 In a recent work, it was shown by one of us (EGC) that Bell-Kochen-Specker inequality violations in phenomena satisfying the no-disturbance condition (a generalisation of the no-signalling condition) cannot in general be explained with a faithful ...
J. C. Pearl, E. G. Cavalcanti
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Bell on Bell's Theorem: The Changing Face of Nonlocality [PDF]
, 2016 1 ...
Brown, H, Timpson, C
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Nonlocality, Bell’s Ansatz, and probability [PDF]
Optics and Spectroscopy, 2007 8&1/2 pages revtex; v2: many corrections, clairifications & extentions, all small; v3: editorial ...
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