Results 111 to 120 of about 317 (134)

Quantum steering and coherence evolution of two atoms under noisy environments

Results in Physics
By considering two kinds of non-Markovian (NM) environments, the dynamical behavior of quantum steering, Bell nonlocality and coherence of a system of two atoms initially immersed in a vacuum has been studied.
K. Berrada, A. Sabik, H. Eleuch
doaj   +1 more source

A quantum loophole to Bell nonlocality

, 2015
We argue that the conclusion of Bell theorem, namely, that there must be spatial non-local correlations in certain experimental situations, does not apply to typical individual measurements performed on entangled EPR pairs. Our claim is based on three points, (i) on the notion of quantum {\it complete measurements}; (ii) on Bell results on local yet ...
openaire   +2 more sources

Single Bell inequality to detect genuine nonlocality in three-qubit pure genuinely entangled states

New Journal of Physics
It remains an open question whether every pure multipartite state that is genuinely entangled is also genuinely nonlocal. Recently, a new general construction of Bell inequalities allowing the detection of genuine multipartite nonlocality (GMNL) in ...
Ignacy Stachura, Owidiusz Makuta, Remigiusz Augusiak   +2 more
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First Encounter with Bell Nonlocality

, 2019
Abstract This chapter is a self-contained introduction to Bell nonlocality. After a very quick historical motivation, the setting and the definition of nonlocality are given. Five classic examples of Bell tests are then introduced, including the CHSH and the GHZ tests.
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Self-testing tilted strategies for maximal loophole-free nonlocality

npj Quantum Information
The 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, Ekta Panwar, Giovanni Scala, Mateus Araújo, Máté Farkas, Anubhav Chaturvedi   +5 more
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Unbounded-input explicit Bell inequalities for general quantum networks

Physical Review Research
Quantum nonlocality in networks featuring multiple independent sources underpins large-scale quantum communication and poses fundamental challenges for its characterization.
Yao Xiao, Fenzhuo Guo, Haifeng Dong, Sujuan Qin, Fei Gao   +4 more
doaj   +1 more source

Bell nonlocality and causal networks

(English) Understanding the cause and effect relationships behind observed correlations is central to how we reason and interact with the world. Causal relationships help us make sense of the patterns we observe and predict what interventions in nature might lead to a desired outcome. These patterns can be mathematically framed as the joint probability
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Bell-inequality violation for continuous, non-projective measurements

Scientific Reports
Many solid-state quantum platforms do not permit sharp, projective measurements but instead yield continuous voltage or field traces under weak, non-demolition readout.
Shalender Singh, Santosh Kumar
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Detecting Bell Nonlocality Based on the Hardy Paradox

International Journal of Theoretical Physics, 2020
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
H X Cao, Cao Huaixin
exaly   +2 more sources

Nonlocal interactions and Bell's inequality

Il Nuovo Cimento B Series 11, 1976
We show that natural extensions of the local hidden-variable theories to include nonlocal effects still lead to a full validity of Bell's inequality. It is conjectured that the essential point expressed by this inequality is not locality, but the wave-particle dualism.
GARUCCIO, Augusto, SELLERI F.
openaire   +2 more sources