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Title: Improving zero-error classical communication with entanglement
Authors: Cubitt, T.S.
Leung, D.
Matthews, W.
Winter, A. 
Issue Date: 8-Jun-2010
Citation: Cubitt, T.S., Leung, D., Matthews, W., Winter, A. (2010-06-08). Improving zero-error classical communication with entanglement. Physical Review Letters 104 (23) : -. ScholarBank@NUS Repository.
Abstract: Given one or more uses of a classical channel, only a certain number of messages can be transmitted with zero probability of error. The study of this number and its asymptotic behavior constitutes the field of classical zero-error information theory. We show that, given a single use of certain classical channels, entangled states of a system shared by the sender and receiver can be used to increase the number of (classical) messages which can be sent without error. In particular, we show how to construct such a channel based on any proof of the Kochen-Specker theorem. We investigate the connection to pseudotelepathy games. The use of generalized nonsignaling correlations to assist in this task is also considered. In this case, an elegant theory results and, remarkably, it is sometimes possible to transmit information with zero error using a channel with no unassisted zero-error capacity. © 2010 The American Physical Society.
Source Title: Physical Review Letters
ISSN: 00319007
DOI: 10.1103/PhysRevLett.104.230503
Appears in Collections:Staff Publications

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