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arXiv · 1012.0106

Sequential projective measurements for channel decoding

Seth Lloyd·Vittorio Giovannetti·Lorenzo Maccone
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Abstract

We study the transmission of classical information in quantum channels. We present a decoding procedure that is very simple but still achieves the channel capacity. It is used to give an alternative straightforward proof that the classical capacity is given by the regularized Holevo bound. This procedure uses only projective measurements and is based on successive "yes"/"no" tests only.

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Seth Lloyd, Vittorio Giovannetti, Lorenzo Maccone. 2011-03-22. Sequential projective measurements for channel decoding. https://doi.org/10.1103/physrevlett.106.250501

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