Results 31 to 40 of about 1,548 (207)

Bell nonlocality with intensity information only [PDF]

open access: yes, 2020
We address the problem of detecting bipartite Bell nonlocality whenever the only experimental information are the intensities produced in each run of the experiment by an unknown number of particles.
Patrick, Ari, Cabello Quintero, Adán
core   +1 more source

Imaging Bell-type nonlocal behavior [PDF]

open access: yesScience Advances, 2019
We report the violation of a Bell inequality within full-field coincidence images of a phase object probed by entangled photons.
Paul-Antoine Moreau   +5 more
openaire   +2 more sources

Exposure of subtle multipartite quantum nonlocality

open access: yesnpj 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
doaj   +1 more source

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 ap-value it will give for a physical experiment. Here we show that to obtain a small expectedp-value it is sufficient to have a large gap between the local and Tsirelson bounds of the Bell inequality, when it is formulated as a ...
Araújo, Mateus   +2 more
openaire   +3 more sources

Device-independent and semi-device-independent entanglement certification in broadcast Bell scenarios

open access: yesSciPost 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
doaj   +1 more source

Recycling nonlocality in quantum star networks

open access: yesPhysical 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
doaj   +1 more source

Exploring Multipartite Steering Effect Using Bell Operators

open access: yesEntropy, 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
doaj   +1 more source

Measurement compatibility in Bell nonlocality tests [PDF]

open access: yes, 2020
CNPQ - CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICOFAPESP - FUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE SÃO PAULOIncompatibility of observables, or measurements, is one of the key features of quantum mechanics, related, among other ...
Cunha, M. T.   +2 more
core   +1 more source

Nonlocality, Bell’s Ansatz, and probability [PDF]

open access: yesOptics and Spectroscopy, 2007
8&1/2 pages revtex; v2: many corrections, clairifications & extentions, all small; v3: editorial ...
openaire   +2 more sources

Quantum resource theory of Bell nonlocality in Hilbert space [PDF]

open access: yes, 2023
We introduce a Hilbert space based resource theory of Bell nonlocality with the aim of providing bona fide measures of quantum nonlocality depending only on the intrinsic properties of the quantum states being considered.
Zanfardino, Gennaro   +3 more
core   +1 more source

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