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arXiv · 0903.3920

Public and private communication with a quantum channel and a secret key

Min-Hsiu Hsieh·Mark M. Wilde
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Abstract

We consider using a secret key and a noisy quantum channel to generate noiseless public communication and noiseless private communication. The optimal protocol for this setting is the publicly-enhanced private father protocol. This protocol exploits random coding techniques and "piggybacking" of public information along with secret-key-assisted private codes. The publicly-enhanced private father protocol is a generalization of the secret-key-assisted protocol of Hsieh, Luo, and Brun and a generelization of a protocol for simultaneous communication of public and private information suggested by Devetak and Shor.

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Min-Hsiu Hsieh, Mark M. Wilde. 2009-03-23. Public and private communication with a quantum channel and a secret key. https://doi.org/10.1103/physreva.80.022306

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