Entanglement-Enhanced Classical Communication on a Noisy Quantum Channel

Charles H. Bennett, Christopher A. Fuchs and John A. Smolin
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Charles H. Bennett: IBM Research Division
Christopher A. Fuchs: Université de Montréal, Département IRO
John A. Smolin: IBM Research Division

A chapter in Quantum Communication, Computing, and Measurement, 1997, pp 79-88 from Springer

Abstract: Abstract We consider the problem of sending a single classical bit through a noisy quantum channel, when two uses of the channel are available as a resource. For a quantum channel, the possibility exists of entangling the channel inputs, which of course cannot be done with a classical channel. We show that, for certain noisy quantum channels, such entangled transmissions increase the receiver’s probability of a correct inference, above what can be achieved by product state transmissions.

Keywords: Quantum Channel; Density Operator; Hermitian Operator; Noisy Channel; Optimal Input (search for similar items in EconPapers)
Date: 1997
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Persistent link: https://EconPapers.repec.org/RePEc:spr:sprchp:978-1-4615-5923-8_9

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DOI: 10.1007/978-1-4615-5923-8_9

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