19 citations · 29 across the 13 of their papers we have counts for
4 papers · 1 filter
Resolvability of classical-quantum channels
Masahito Hayashi, Hao-Chung Cheng, Li Gao
Channel resolvability concerns the minimum resolution for approximating the channel output. We study the resolvability of classical-quantum channels in two settings, for the channe…
Joint State-Channel Decoupling and One-Shot Quantum Coding Theorem
Hao-Chung Cheng, Frédéric Dupuis, Li Gao
In this work, we consider decoupling a bipartite quantum state via a general quantum channel. We propose a joint state-channel decoupling approach to obtain a one-shot error expone…
Optimal Second-Order Rates for Quantum Information Decoupling
Yu-Chen Shen, Li Gao, Hao-Chung Cheng
In this paper, we consider the standard quantum information decoupling, in which Alice aims to decouple her system from the environment by local operations and discarding some of h…
On Strong Converse Theorems for Quantum Hypothesis Testing and Channel Coding
Hao-Chung Cheng, Li Gao
Strong converse theorems refer to the study of impossibility results in information theory. In particular, Mosonyi and Ogawa established a one-shot strong converse bound for quantu…