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Two Faced Janus of Quantum Nonlocality [PDF]

Entropy, 2020
This paper is a new step towards understanding why “quantum nonlocality” is a misleading concept. Metaphorically speaking, “quantum nonlocality” is Janus faced. One face is an apparent nonlocality of the Lüders projection and
Andrei Khrennikov
doaj   +7 more sources

Quantum Nonlocality [PDF]

Entropy, 2019
The role of physics is to explain observed phenomena [...]
Lev Vaidman
doaj   +5 more sources

Strong quantum nonlocality without entanglement in every (n−1)-partition [PDF]

iScience
Summary: The orthogonal product set with quantum nonlocality can enhance the confidentiality of information without consuming entanglement resources. The confidentiality increases with the reinforcement of its nonlocality. However, the orthogonal product
Huaqi Zhou, Ting Gao, Fengli Yan
doaj   +4 more sources

Nonlocality activation in a photonic quantum network [PDF]

Nature Communications, 2023
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, Emanuele Polino, Farzad Ghafari, Marco Túlio Quintino, Kiarn T. Laverick, Ian R. Berkman, Sven Rogge, Lynden K. Shalm, Nora Tischler, Eric G. Cavalcanti, Sergei Slussarenko, Geoff J. Pryde   +11 more
doaj   +4 more sources

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

Entropy (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   +3 more sources

Noise-robust proofs of quantum network nonlocality [PDF]

Quantum, 2023
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, Bora Ulu, Nicolas Brunner, Pavel Sekatski   +3 more
doaj   +5 more sources

Optimal strategy to certify quantum nonlocality [PDF]

Scientific Reports, 2021
Certification of quantum nonlocality plays a central role in practical applications like device-independent quantum cryptography and random number generation protocols.
S. Gómez, D. Uzcátegui, I. Machuca, E. S. Gómez, S. P. Walborn, G. Lima, D. Goyeneche   +6 more
doaj   +2 more sources

Variational Quantum Optimization of Nonlocality in Noisy Quantum Networks [PDF]

IEEE 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, R. Thomas Bromley, Nathan Killoran, Eric Chitambar   +3 more
doaj   +2 more sources

Genuine Quantum Nonlocality in the Triangle Network [PDF]

Physical Review Letters, 2019
Quantum networks allow in principle for completely novel forms of quantum correlations. In particular, quantum nonlocality can be demonstrated here without the need of having various input settings, but only by considering the joint statistics of fixed ...
Nicolas Brunner, Marc Olivier Renou, Nicolas Gisin   +2 more
exaly   +2 more sources

Quantum nonlocality without entanglement: explicit dependence on prior probabilities of nonorthogonal mirror-symmetric states

npj Quantum Information, 2021
In the case of a multi-party system, through local operations and classical communication (LOCC), each party may not perform perfect discrimination of quantum states that are separable and orthogonal.
Donghoon Ha, Younghun Kwon
doaj   +2 more sources