Results 11 to 20 of about 3,405 (240)

Variational Quantum Optimization of Nonlocality in Noisy Quantum Networks

open access: yesIEEE Transactions on Quantum Engineering, 2023
The noise and complexity inherent to quantum communication networks leads to technical challenges in designing quantum network protocols using classical methods.
Brian Doolittle   +3 more
doaj   +3 more sources

Nonlocality activation in a photonic quantum network

open access: yesNature Communications
Bell nonlocality refers to correlations between two distant, entangled particles that challenge classical notions of local causality. Beyond its foundational significance, nonlocality is crucial for device-independent technologies like quantum key ...
Luis Villegas-Aguilar   +11 more
doaj   +2 more sources

Nonlocality distillation and quantum voids [PDF]

open access: yesPhysical Review A, 2019
10 pages, 3 figures, all comments are ...
S. G. A. Brito   +3 more
openaire   +5 more sources

Noise-robust proofs of quantum network nonlocality [PDF]

open access: yesQuantum
Quantum networks allow for novel forms of quantum nonlocality. By exploiting the combination of entangled states and entangled measurements, strong nonlocal correlations can be generated across the entire network.
Sadra Boreiri   +3 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

Quantum Nonlocality in Any Forked Tree-Shaped Network. [PDF]

open access: yesEntropy (Basel), 2022
In the last decade, much attention has been focused on examining the nonlocality of various quantum networks, which are fundamental for long-distance quantum communications.
Yang L, Qi X, Hou J.
europepmc   +2 more sources

Macroscopically Nonlocal Quantum Correlations [PDF]

open access: yesPhysical Review Letters, 2021
It is usually believed that coarse-graining of quantum correlations leads to classical correlations in the macroscopic limit. Such a principle, known as macroscopic locality, has been proved for correlations arising from independent and identically distributed (IID) entangled pairs. In this letter we consider the generic (non-IID) scenario.
Miguel Gallego, Borivoje Dakić
openaire   +3 more sources

Combinatorics and Quantum Nonlocality [PDF]

open access: yesPhysical Review Letters, 2003
We use techniques for lower bounds on communication to derive necessary conditions (in terms of detector efficiency or amount of super-luminal communication) for being able to reproduce the quantum correlations occurring in EPR-type experiments with classical local hidden-variable theories.
Buhrman, Harry   +3 more
openaire   +6 more sources

Genuine hidden nonlocality without entanglement: from the perspective of local discrimination

open access: yesNew Journal of Physics, 2022
Quantum nonlocality without entanglement is a fantastic phenomenon in quantum theory. This kind of quantum nonlocality is based on the task of local discrimination of quantum states. Recently, Bandyopadhyay and Halder (2021 Phys. Rev.
Mao-Sheng Li, Zhu-Jun Zheng
doaj   +1 more source

Anonymous Quantum Nonlocality [PDF]

open access: yesPhysical Review Letters, 2014
4 + 4 pages, 2 figures; comments welcomed!
Liang Yeong-Cherng   +3 more
openaire   +3 more sources

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