Please use this identifier to cite or link to this item:
https://scholarbank.nus.edu.sg/handle/10635/112500
DC Field | Value | |
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dc.title | Quantum networks reveal quantum nonlocality. | |
dc.contributor.author | Cavalcanti, D. | |
dc.contributor.author | Almeida, M.L. | |
dc.contributor.author | Scarani, V. | |
dc.contributor.author | Acín, A. | |
dc.date.accessioned | 2014-11-28T05:02:05Z | |
dc.date.available | 2014-11-28T05:02:05Z | |
dc.date.issued | 2011 | |
dc.identifier.citation | Cavalcanti, D., Almeida, M.L., Scarani, V., Acín, A. (2011). Quantum networks reveal quantum nonlocality.. Nature communications 2 : 184-. ScholarBank@NUS Repository. | |
dc.identifier.issn | 20411723 | |
dc.identifier.uri | http://scholarbank.nus.edu.sg/handle/10635/112500 | |
dc.description.abstract | 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. Here, we introduce a novel approach to this question: we study the nonlocal properties of quantum states when distributed and measured in networks. We show, using our framework, how any one-way entanglement distillable state leads to nonlocal correlations and prove that quantum nonlocality is a non-additive resource, which can be activated. There exist states, local at the single-copy level, that become nonlocal when taking several copies of them. Our results imply that the nonlocality of quantum states strongly depends on the measurement context. | |
dc.description.uri | http://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1038/ncomms1193 | |
dc.source | Scopus | |
dc.type | Article | |
dc.contributor.department | CENTRE FOR QUANTUM TECHNOLOGIES | |
dc.description.sourcetitle | Nature communications | |
dc.description.volume | 2 | |
dc.description.page | 184- | |
dc.identifier.isiut | 000288225900013 | |
Appears in Collections: | Staff Publications |
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