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

Min-Hsiu Hsieh and Mark M. Wilde
Phys. Rev. A 80, 022306 – Published 5 August 2009

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 generalization of a protocol for simultaneous communication of public and private information suggested by Devetak and Shor.

  • Figure
  • Figure
  • Received 17 April 2009

DOI:https://doi.org/10.1103/PhysRevA.80.022306

©2009 American Physical Society

Authors & Affiliations

Min-Hsiu Hsieh*

  • ERATO–SORST Quantum Computation and Information Project, Japan Science and Technology Agency, 5-28-3 Hongo, Bunkyo-ku, Tokyo, 113–0033 Japan

Mark M. Wilde

  • Electronic Systems Division, Science Applications International Corporation, 4001 North Fairfax Drive, Arlington, Virginia 22203, USA

  • *minhsiuh@gmail.com
  • mark.m.wilde@saic.com

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Issue

Vol. 80, Iss. 2 — August 2009

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