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Paper 1

Partial decode-forward for quantum relay channels

Ivan Savov, Mark M. Wilde, Mai Vu

Year

2011

Journal

arXiv preprint

DOI

arXiv:1201.0011

arXiv

1201.0011

A relay channel is one in which a Source and Destination use an intermediate Relay station in order to improve communication rates. We propose the study of relay channels with classical inputs and quantum outputs and prove that a "partial decode and forward" strategy is achievable. We divide the channel uses into many blocks and build codes in a randomized, block-Markov manner within each block. The Relay performs a standard Holevo-Schumacher-Westmoreland quantum measurement on each block in order to decode part of the Source's message and then forwards this partial message in the next block. The Destination performs a novel "sliding-window" quantum measurement on two adjacent blocks in order to decode the Source's message. This strategy achieves non-trivial rates for classical communication over a quantum relay channel.

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Paper 2

Optomechanical transducers for long-distance quantum communication.

Stannigel K, Rabl P, Sørensen AS, Zoller P, Lukin MD.

Year

2010

Journal

Phys Rev Lett

DOI

10.1103/physrevlett.105.220501

arXiv

-

No abstract.

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