Entanglement assisted capacity of the broadband Lossy channel

Entanglement assisted capacity of the broadband Lossy channel

We calculate the entanglement assisted capacity of a multimode bosonic channel with loss. As long as the efficiency of the channel is above 50%, the superdense coding effect can be used to transmit more bits than those that can be stored in the message sent down the channel. Bounds for the other cap...

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Veröffentlicht in:Physical review letters 2003-07, Vol.91 (4), p.047901-047901, Article 047901
Hauptverfasser: Giovannetti, Vittorio, Lloyd, Seth, Maccone, Lorenzo, Shor, Peter W
Format: Artikel
Sprache:eng
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Zusammenfassung:We calculate the entanglement assisted capacity of a multimode bosonic channel with loss. As long as the efficiency of the channel is above 50%, the superdense coding effect can be used to transmit more bits than those that can be stored in the message sent down the channel. Bounds for the other capacities of the multimode channel are also provided.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.91.047901