Z. Shadman, H. Kampermann, Chiara Macchiavello, D. Bruß
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A review on super dense coding over covariant noisy channels
Abstract We study the performance of the super dense coding protocol in the presence of quantum channels with covariant noise. We first consider the bipartite case and review in a unified way the case of general Pauli channels. We discuss both the cases of unitary and non-unitary encoding. We also study the multipartite scenario and investigate the case of many senders and one receiver.
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