Results 11 to 20 of about 2,569,347 (213)

Advances of Quantum Key Distribution and Network Nonlocality [PDF]

open access: yesEntropy
In recent years, quantum network technology has been rapidly developing, with new theories, solutions, and protocols constantly emerging. The breakthrough experiments and achievements are impressive, such as the construction and operation of ultra-long ...
Minming Geng
doaj   +3 more sources

Sharing quantum nonlocality in star network scenarios [PDF]

open access: yesFrontiers of Physics, 2022
The Bell nonlocality is closely related to the foundations of quantum physics and has significant applications to security questions in quantum key distributions.
Ting-Gui Zhang, N. Jing, S. Fei
semanticscholar   +2 more sources

Closing the Door on Quantum Nonlocality. [PDF]

open access: yesEntropy (Basel), 2018
Bell-type inequalities are proven using oversimplified probabilistic models and/or counterfactual definiteness (CFD). If setting-dependent variables describing measuring instruments are correctly introduced, none of these inequalities may be proven.
Kupczynski M.
europepmc   +2 more sources

Quantum Nonlocality in Networks Can Be Demonstrated with an Arbitrarily Small Level of Independence between the Sources [PDF]

open access: yesPhysical Review Letters, 2020
Quantum nonlocality can be observed in networks even in the case where every party can only perform a single measurement, i.e., does not receive any input. So far, this effect has been demonstrated under the assumption that all sources in the network are
Ivan Šupić   +2 more
exaly   +2 more sources

Strong quantum nonlocality with entanglement [PDF]

open access: yesPhysical Review A, 2020
Strong quantum nonlocality was introduced recently as a stronger manifestation of nonlocality in multipartite systems through the notion of local irreducibility in all bipartitions.
Lin Chen, Mengyao Hu, Xiande Zhang
exaly   +2 more sources

Quantum Nonlocality and Quantum Correlations in the Stern-Gerlach Experiment. [PDF]

open access: yesEntropy (Basel), 2018
The Stern–Gerlach experiment (SGE) is one of the foundational experiments in quantum physics. It has been used in both the teaching and the development of quantum mechanics.
Piceno Martínez AE   +4 more
europepmc   +2 more sources

Tripartite realism-based quantum nonlocality [PDF]

open access: yesPhysical Review A, 2019
From an operational criterion of physical reality, a quantifier of realism-based nonlocality was recently introduced for two-part quantum states. This measure has shown to capture aspects that are rather different from Bell nonlocality.
Renato M Angelo
exaly   +2 more sources

Nonlocality, integrability and quantum chaos in the spectrum of Bell operators [PDF]

open access: yesnpj Quantum Information
We introduce a permutationally invariant multipartite Bell inequality for many-body three-level systems and use it to investigate a connection between Bell nonlocality and (lack of) quantum chaos.
Albert Aloy   +4 more
doaj   +2 more sources

On the Activation of Quantum Nonlocality

open access: yesUniversitas Scientiarum, 2016
We report on some quantum properties of physical systems, namely, entanglement, nonlocality, k-copy nonlocality (superactivation of nonlocality), hidden nonlocality (activation of nonlocality through local filtering) and the activation of nonlocality ...
Andrés Felipe Ducuara   +2 more
doaj   +2 more sources

Nonlocality in quantum cloning states [PDF]

open access: yesScientific Reports
This study investigates the nonlocality characteristics of output states produced by a universal quantum cloning machine, with particular emphasis on the Bell-CHSH inequality violations exhibited by the two-qubit reduced states of cloned outputs. Through
Jun Liu, Zhiwen Mo
doaj   +2 more sources

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