3 papers
quant-ph2020
Permutation Enhances Classical Communication Assisted by Entangled States
Kun Wang, Masahito Hayashi
We give a capacity formula for the classical communication over a noisy quantum channel, when local operations and global permutations allowed in the encoding and bipartite states…
quant-ph2019
Application of the Resource Theory of Channels to Communication Scenarios
Ryuji Takagi, Kun Wang, Masahito Hayashi
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 --- is…
quant-ph2019
Optimal Verification of Two-Qubit Pure States
Kun Wang, Masahito Hayashi
In a recent work [Phys. Rev. Lett. 120, 170502 (2018)], Pallister et al. proposed an optimal strategy to verify non-maximally entangled two-qubit pure states under the constraint t…