Lee, Ciarán M. and Hoban, Matty J.. 2018. Towards Device-Independent Information Processing on General Quantum Networks. Physical Review Letters, 120(2), 020504. ISSN 0031-9007 [Article]

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Abstract or Description

The violation of certain Bell inequalities allows for device-independent information processing secure against nonsignaling eavesdroppers. However, this only holds for the Bell network, in which two or more agents perform local measurements on a single shared source of entanglement. To overcome the practical constraints that entangled systems can only be transmitted over relatively short distances, large-scale multisource networks have been employed. Do there exist analogs of Bell inequalities for such networks, whose violation is a resource for device independence? In this Letter, the violation of recently derived polynomial Bell inequalities will be shown to allow for device independence on multisource networks, secure against nonsignaling eavesdroppers.

Item Type:	Article
Identification Number (DOI):	https://doi.org/10.1103/PhysRevLett.120.020504
Keywords:	personality, virtual human, social anxiety, virtual reality, character
Departments, Centres and Research Units:	Computing
Dates:	Date Event 16 November 2017 Accepted 10 January 2018 Published
Item ID:	24267
Date Deposited:	12 Sep 2018 09:47
Last Modified:	03 Aug 2021 15:04
Peer Reviewed:	Yes, this version has been peer-reviewed.
URI:	https://research.gold.ac.uk/id/eprint/24267

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