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A new proof of the channel coding theorem via hypothesis testing in quantum information theory

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2 Author(s)
T. Ogawa ; Tokyo Univ., Japan ; H. Nagaoka

A new proof of the direct part of the quantum channel coding theorem is shown based on a standpoint of quantum hypothesis testing. A packing procedure of mutually noncommutative operators is carried out to derive an upper bound on the error probability, which is similar to Feinstein's lemma in classical channel coding. The upper bound is used to show the proof of the direct part along with a variant of Hiai-Petz's theorem in hypothesis testing.

Published in:

Information Theory, 2002. Proceedings. 2002 IEEE International Symposium on

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