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• W1887941508 abstract "The trade-off capacity region of a quantum channel characterizes the optimal net rates at which a sender can communicate classical, quantum, and entangled bits to a receiver by exploiting many independent uses of the channel, along with the help of the same resources. Similarly, one can consider a trade-off capacity region when the noiseless resources are public, private, and secret key bits. In [Phys. Rev. Lett. 108, 140501 (2012)], we identified these trade-off rate regions for the pure-loss bosonic channel and proved that they are optimal provided that a longstanding minimum output entropy conjecture is true. Additionally, we showed that the performance gains of a trade-off coding strategy when compared to a time-sharing strategy can be quite significant. In the present paper, we provide detailed derivations of the results announced there, and we extend the application of these ideas to thermalizing and amplifying bosonic channels. We also derive a rule of thumb for trade-off coding, which determines how to allocate photons in a coding strategy if a large mean photon number is available at the channel input. Our results on the amplifying bosonic channel also apply to the Unruh channel considered in the context of relativistic quantum information theory." @default.
• W1887941508 created "2016-06-24" @default.
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• W1887941508 date "2012-12-06" @default.
• W1887941508 modified "2023-10-11" @default.
• W1887941508 title "Quantum trade-off coding for bosonic communication" @default.
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• W1887941508 doi "https://doi.org/10.1103/physreva.86.062306" @default.
• W1887941508 hasPublicationYear "2012" @default.
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