Results 81 to 90 of about 9,815 (180)

Analog of the Clauser-Horne-Shimony-Holt inequality for steering

open access: yes, 2015
The Clauser-Horne-Shimony-Holt (CHSH) inequality (and its permutations), are necessary and sufficient criteria for Bell nonlocality in the simplest Bell-nonlocality scenario: 2 parties, 2 measurements per party and 2 outcomes per measurement.
Cavalcanti, Eric G.   +3 more
core   +1 more source

Optimality of semiquantum nonlocality in the presence of high inconclusive rates

open access: yes, 2016
Quantum nonlocality is a counterintuitive phenomenon that lies beyond the purview of causal influences. Recently, Bell inequalities have been generalized to the case of quantum inputs, leading to a powerful family of semi-quantum Bell inequalities that ...
Lim, Charles Ci Wen
core   +1 more source

Formalizing Bell Nonlocality

open access: yes, 2019
Abstract This chapter covers the essential mathematical tools for the study of nonlocality. It begins with the main object under study: a collection of several probability distributions usually called “behavior”. The crucial definition of locality is then given, followed by Fine’s theorem that relates local behaviors to pre-existing ...
openaire   +1 more source

Testing nonlocality of a single photon without a shared reference frame

open access: yes, 2013
The question of testing the nonlocality of a single photon has raised much debate over the last years. The controversy is intimately related to the issue of providing a common reference frame for the observers to perform their local measurements. Here we
Brask, Jonatan Bohr   +2 more
core   +2 more sources

Semi-device-independent information processing with spatiotemporal degrees of freedom

open access: yesPhysical Review Research, 2020
Nonlocality, as demonstrated by the violation of Bell inequalities, enables device-independent cryptographic tasks that do not require users to trust their apparatus. In this article, we consider devices whose inputs are spatiotemporal degrees of freedom,
Andrew J. P. Garner   +2 more
doaj   +1 more source

Quantum Nonlocality of N-qubit W states

open access: yes, 2005
An experimental setup for testing quantum nonlocality of N qubits is proposed. This method is a generalization of the optical setup proposed by Banaszek and Wodkiewicz [1].
Chen, Jing-Ling   +3 more
core   +1 more source

Bell nonlocality and Bayesian game theory

open access: yes, 2012
We discuss a connection between Bell nonlocality and Bayesian games. This link offers interesting perspectives for Bayesian games, namely to allow the players to receive advice in the form of nonlocal correlations, for instance using entangled quantum ...
Brunner, Nicolas, Linden, Noah
core   +2 more sources

Why do Bell experiments?

open access: yes, 2000
Experiments over three decades have been unable to demonstrate weak nonlocality in the sense of Bell unambiguously, without loopholes. The last important loophole remaining is the detection loophole, which is being tackled by at least three experimental ...
Aspect   +16 more
core   +1 more source

Catalytic Activation of Bell Nonlocality

open access: yesPhysical Review Letters
The correlations of certain entangled states can be perfectly simulated classically via a local model. Hence such states are termed Bell local, as they cannot lead to Bell inequality violation. Here, we show that Bell nonlocality can nevertheless be activated for certain Bell-local states via a catalytic process.
Jessica Bavaresco   +4 more
openaire   +2 more sources

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