Results 1 to 10 of about 9,815 (180)
Reviews of Modern Physics, 2014 Bell's 1964 theorem, which states that the predictions of quantum theory cannot be accounted for by any local theory, represents one of the most profound developments in the foundations of physics.
Brunner, Nicolas +4 more
core +7 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 +2 more
doaj +6 more sources
Bohr against Bell: complementarity versus nonlocality
Open Physics, 2017 In this note we compare the views of Bohr (known as the Copenhagen interpretation of quantum mechanics) with the views of Bell: complementarity versus nonlocality.
Khrennikov Andrei
doaj +4 more sources
Quantum Advantages of Communication Complexity from Bell Nonlocality. [PDF]
Entropy (Basel), 2021 Communication games are crucial tools for investigating the limitations of physical theories. The communication complexity (CC) problem is a typical example, for which several distributed parties attempt to jointly calculate a given function with limited classical communications.
Jia ZA, Wei L, Wu YC, Guo GC.
europepmc +6 more sources
Bell nonlocality with intensity information only [PDF]
Physical Review A, 2020 We address the problem of detecting bipartite Bell nonlocality whenever the only experimental information are the intensities produced in each run of the experiment by an unknown number of particles.
Cabello, Adán, Patrick, Ari
core +4 more sources
Entanglement without hidden nonlocality
New Journal of Physics, 2016 We consider Bell tests in which the distant observers can perform local filtering before testing a Bell inequality. Notably, in this setup, certain entangled states admitting a local hidden variable model in the standard Bell scenario can nevertheless ...
Flavien Hirsch +4 more
doaj +3 more sources
Nonlocality activation in a photonic quantum network [PDF]
Nature CommunicationsBell 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 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 +4 more
doaj +3 more sources
Nonlocality in quantum cloning states [PDF]
Scientific ReportsThis 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
Classical Causal Models for Bell and Kochen-Specker Inequality Violations Require Fine-Tuning
Physical Review X, 2018 Nonlocality and contextuality are at the root of conceptual puzzles in quantum mechanics, and they are key resources for quantum advantage in information-processing tasks.
Eric G. Cavalcanti
doaj +3 more sources