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Entanglement enhanced information transmission over a quantum channel with correlated noise

Chiara Macchiavello·G. Massimo Palma
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Abstract

We show that entanglement is a useful resource to enhance the mutual information of the depolarizing channel when the noise on consecutive uses of the channel has some partial correlations. We obtain a threshold in the degree of memory, depending on the shrinking factor of the channel, above which a higher amount of classical information is transmitted with entangled signals.

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Chiara Macchiavello, G. Massimo Palma. 2001-07-09. Entanglement enhanced information transmission over a quantum channel with correlated noise. https://doi.org/10.1103/physreva.65.050301

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