Results 11 to 20 of about 230,446 (337)

W-Class States—Identification and Quantification of Bell-CHSH Inequalities’ Violation [PDF]

open access: yesEntropy
We discuss a family of W-class states describing three-qubit systems. For such systems, we analyze the relations between the entanglement measures and the nonlocality parameter for a two-mode mixed state related to the two-qubit subsystem.
Joanna K. Kalaga   +2 more
doaj   +2 more sources

Violation of Bell inequality with unentangled photons. [PDF]

open access: greenSci Adv
Wang K   +8 more
europepmc   +3 more sources

Generalizing Optimal Bell Inequalities [PDF]

open access: yesPhysical Review Letters, 2020
Bell inequalities are central tools for studying nonlocal correlations and their applications in quantum information processing. Identifying inequalities for many particles or measurements is, however, difficult due to the computational complexity of characterizing the set of local correlations.
Bernards, Fabian, Gühne, Otfried
openaire   +3 more sources

Boosting device-independent cryptography with tripartite nonlocality [PDF]

open access: yesQuantum, 2023
Device-independent (DI) protocols, such as DI conference key agreement (DICKA) and DI randomness expansion (DIRE), certify private randomness by observing nonlocal correlations when two or more parties test a Bell inequality.
Federico Grasselli   +3 more
doaj   +1 more source

Bell's inequalities [PDF]

open access: yesOptics Communications, 1999
We now discuss Bell’s famous inequalities and the consequences of their breakdown for quantum theory. Discovered by J. Bell in 1965[1], they led to the possibility of finding new inequalities and relations by Clauser, Home, Shimony, Greenberger, Zeilinger and Hardy[2‖5].
Andrey Anatoljevich Grib   +1 more
openaire   +3 more sources

Bell nonlocality with a single shot [PDF]

open access: yesQuantum, 2020
In order to reject the local hidden variables hypothesis, the usefulness of a Bell inequality can be quantified by how small a $p$-value it will give for a physical experiment.
Mateus Araújo   +2 more
doaj   +1 more source

BRST invariant formulation of the Bell-CHSH inequality in gauge field theories

open access: yesSciPost Physics, 2023
A study of the Bell-CHSH inequality in gauge field theories is presented. By using the Kugo-Ojima analysis of the BRST charge cohomology in Fock space, the Bell-CHSH inequality is formulated in a manifestly BRST invariant way.
David Dudal, Philipe De Fabritiis, Marcelo Santos Guimaraes, Giovani Peruzzo, Silvio Paolo Sorella
doaj   +1 more source

Logical Bell inequalities [PDF]

open access: yesPhysical Review A, 2012
12 ...
Abramsky, S, Hardy, L
openaire   +3 more sources

Robust Bell inequalities from communication complexity [PDF]

open access: yesQuantum, 2018
The question of how large Bell inequality violations can be, for quantum distributions, has been the object of much work in the past several years. We say that a Bell inequality is normalized if its absolute value does not exceed 1 for any classical (i.e.
Sophie Laplante   +4 more
doaj   +1 more source

Platonic Bell inequalities for all dimensions [PDF]

open access: yesQuantum, 2022
In this paper we study the Platonic Bell inequalities for all possible dimensions. There are five Platonic solids in three dimensions, but there are also solids with Platonic properties (also known as regular polyhedra) in four and higher dimensions. The
Károly F. Pál, Tamás Vértesi
doaj   +1 more source

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