Public and private communication with a quantum channel and a secret key
Quantum Physics
2009-08-05 v1
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.
Keywords
Cite
@article{arxiv.0903.3920,
title = {Public and private communication with a quantum channel and a secret key},
author = {Min-Hsiu Hsieh and Mark M. Wilde},
journal= {arXiv preprint arXiv:0903.3920},
year = {2009}
}
Comments
15 pages, 2 figures