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Noisy Channel Coding via Privacy Amplification and Information Reconciliation

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2 Author(s)
Renes, J.M. ; Inst. for Theor. Phys., ETH Zurich, Zürich, Switzerland ; Renner, R.

We show that optimal protocols for noisy channel coding of public or private information over either classical or quantum channels can be directly constructed from two more primitive information-theoretic protocols: privacy amplification and information reconciliation, also known as data compression with side information. We do this in the one-shot scenario of structureless resources, and formulate our results in terms of the smooth min- and max-entropy. In the context of classical information theory, this shows that essentially all two-terminal protocols can be reduced to these two primitives, which are in turn governed by the smooth min- and max-entropies, respectively. In the context of quantum information theory, the recently-established duality of these two protocols means essentially all two-terminal protocols can be constructed using just a single primitive. As an illustration, we show how optimal noisy channel coding protocols can be constructed solely from privacy amplification.

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Information Theory, IEEE Transactions on  (Volume:57 ,  Issue: 11 )