Hao–Chung Cheng

Optimal Second-Order Rates for Quantum Information Decoupling

2023

In this paper, we consider the standard quantum information decoupling, in which Alice aims to decouple her system from the environment by discarding some of her systems. To achieve an ε-decoupling with trace distance as …

Resolvability of classical-quantum channels

2024 · arXiv (Cornell University)

Channel resolvability concerns the minimum resolution for approximating the channel output. We study the resolvability of classical-quantum channels in two settings, for the channel output generated from the worst input, and form the fixed independent …