Secret-key-assisted private classical communication capacity over quantum channels
- Publisher:
- American Physical Society
- Publication Type:
- Journal Article
- Citation:
- Hsieh, Min-Hsiu, Luo, Zhicheng, and Brun, Todd 2008, 'Secret-key-assisted private classical communication capacity over quantum channels', Physical Review A, vol. 78, no. 4, pp. 042306-1-042306-6.
- Issue Date:
- 2008
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We prove a regularized formula for the secret key-assisted capacity region of a quantum channel for transmitting private classical information. This result parallels the work of Devetak on entanglement assisted quantum communication capacity \cite{DHW05RI}. This formula provides a new family protocol, the private father protocol, under the resource inequality framework that includes private classical communication \it{without} secret key assistance as a child protocol.
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