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03.10.+m Entanglement measures

Quantum networks reveal quantum nonlocality

Mon, 2011-02-14 16:21 - Q-Essence Coordinator
Date: 
2011-02-08
Author(s): 

Daniel Cavalcanti, Mafalda L. Almeida, Valerio Scarani and Antonio Acín

Reference: 

Nat. Commun. 2 , 184 (2011)
doi:10.1038/ncomms1193 (2011)

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. Quantum nonlocality is also a valuable resource for information-processing tasks, for example, quantum communication, quantum key distribution, quantum state estimation or randomness extraction. Still, deciding whether a quantum state is nonlocal remains a challenging problem.

Quantum networks reveal quantum nonlocality

Tue, 2011-02-08 09:48 - Lukas Theussl
Date: 
2011-02-08
Author(s): 

Daniel Cavalcanti, Mafalda L. Almeida, Valerio Scarani & Antonio Acín

Reference: 

Nature Communications 2, Article number: 184, doi:10.1038/ncomms1193

URL: 

http://www.nature.com/ncomms/journal/v2/n2/full/ncomms1193.html

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. Quantum nonlocality is also a valuable resource for information-processing tasks, for example, quantum communication, quantum key distribution, quantum state estimation or randomness extraction. Still, deciding whether a quantum state is nonlocal remains a challenging problem.

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