Results 31 to 40 of about 4,469 (136)
, 2014 The correlations that admit a local hidden-variable model are described by a family of polytopes, whose facets are the Bell inequalities. The CHSH inequality is the simplest such Bell inequality and is a facet of every Bell polytope.
Pironio, Stefano
core +1 more source
Quantifying multipartite nonlocality via the size of the resource [PDF]
, 2014 The generation of (Bell-)nonlocal correlations, i.e., correlations leading to the violation of a Bell-like inequality, requires the usage of a nonlocal resource, such as an entangled state.
Curchod, Florian John +2 more
core +3 more sources
, 2009 Device independent quantum key distribution aims to provide a higher degree of security than traditional QKD schemes by reducing the number of assumptions that need to be made about the physical devices used.
Acin A +6 more
core +2 more sources
Certifying long-range quantum correlations through routed Bell tests [PDF]
QuantumLosses in the transmission channel, which increase with distance, pose a major obstacle to photonics demonstrations of quantum nonlocality and its applications. Recently, Chaturvedi, Viola, and Pawlowski (CVP) [arXiv:2211.14231] introduced a variation of
Edwin Peter Lobo +2 more
doaj +1 more source
High-speed batch processing of semidefinite programs with feedforward neural networks
New Journal of Physics, 2021 Semidefinite programming is an important optimization task, often used in time-sensitive applications. Though they are solvable in polynomial time, in practice they can be too slow to be used in online, i.e. real-time applications.
Tamás Kriváchy +4 more
doaj +1 more source
Bounding the persistency of the nonlocality of W states [PDF]
, 2016 The nonlocal properties of the W states are investigated under particle loss. By removing all but two particles from an $N$-qubit W state, the resulting two-qubit state is still entangled. Hence, the W state has high persistency of entanglement.
Bene, Erika +3 more
core +3 more sources
The local content of all pure two-qubit states [PDF]
, 2012 The (non-)local content in the sense of Elitzur, Popescu, and Rohrlich (EPR2) [Phys. Lett. A 162, 25 (1992)] is a natural measure for the (non-)locality of quantum states. Its computation is in general difficult, even in low dimensions, and is one of the
A. Méthot +12 more
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Semi-device-independent bounds on entanglement
, 2011 Detection and quantification of entanglement in quantum resources are two key steps in the implementation of various quantum-information processing tasks.
A. A. Methot +7 more
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Security of practical private randomness generation [PDF]
, 2012 Measurements on entangled quantum systems necessarily yield outcomes that are intrinsically unpredictable if they violate a Bell inequality. This property can be used to generate certified randomness in a device-independent way, i.e., without making ...
D. Knuth +11 more
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Hyperdense coding and superadditivity of classical capacities in hypersphere theories
New Journal of Physics, 2015 In quantum superdense coding, two parties previously sharing entanglement can communicate a two bit message by sending a single qubit. We study this feature in the broader framework of general probabilistic theories.
Serge Massar +2 more
doaj +1 more source