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Quantum Nonlocality [PDF]

Entropy, 2019
The role of physics is to explain observed phenomena [...]
Lev Vaidman
doaj   +8 more sources

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   +2 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

Quantum networks reveal quantum nonlocality [PDF]

Nature Communications, 2010
The results of local measurements on some composite quantum systems cannot be reproduced classically. This impossibility, known as quantum nonlocality, represents a milestone in the foundations of quantum theory.
A Acín, A Acín, A Sen De, AA Methot, C-E Bardyn, D Collins, D Collins, D Svetlichny, H Buhrman, I Devetak, J Barrett, J Barrett, JF Clauser, JS Bell, L Masanes, M Forster, M Seevinck, ML Almeida, ML Almeida, N Brunner, RF Werner, RF Werner, S Pironio, S Popescu, S Popescu, T Vértesi, Y-C Liang   +26 more
core   +3 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   +2 more sources

Causal hierarchy of multipartite Bell nonlocality [PDF]

Quantum, 2017
As with entanglement, different forms of Bell nonlocality arise in the multipartite scenario. These can be defined in terms of relaxations of the causal assumptions in local hidden-variable theories.
Rafael Chaves, Daniel Cavalcanti, Leandro Aolita   +2 more
doaj   +4 more sources

Advances of Quantum Key Distribution and Network Nonlocality [PDF]

Entropy
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   +2 more sources

Quantum nonlocality does not exist. [PDF]

Proc Natl Acad Sci U S A, 2014
Significance I show that quantum nonlocality is an artifact of the assumption that observers obey the laws of classical mechanics, whereas observed systems obey quantum mechanics. Locality is restored if observed and observer both obey quantum mechanics, as in the many-worlds interpretation (MWI).
Tipler FJ.
europepmc   +5 more sources

Nonlocality in sequential correlation scenarios [PDF]

New Journal of Physics, 2014
As first shown by Popescu (1995 Phys. Rev. Lett. 74 2619), some quantum states only reveal their nonlocality when subjected to a sequence of measurements while giving rise to local correlations in standard Bell tests.
Rodrigo Gallego, Lars Erik Würflinger, Rafael Chaves, Antonio Acín, Miguel Navascués   +4 more
doaj   +3 more sources

Nonlocality activation in a photonic quantum network [PDF]

Nature 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, 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   +2 more sources