# Application of the Resource Theory of Channels to Communication Scenarios.

@article{Takagi2020ApplicationOT, title={Application of the Resource Theory of Channels to Communication Scenarios.}, author={Ryuji Takagi and Kun Wang and Masahito Hayashi}, journal={Physical review letters}, year={2020}, volume={124 12}, pages={ 120502 } }

We introduce a resource theory of channels relevant to communication via quantum channels, in which the set of constant channels-useless channels for communication tasks-are considered as free resources. We find that our theory with such a simple structure is useful to address central problems in quantum Shannon theory-in particular, we provide a converse bound for the one-shot nonsignaling assisted classical capacity that naturally leads to its strong converse property, as well as obtain the… Expand

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