27 citations · 44 across the 5 of their papers we have counts for
5 papers
Strong Converse Exponent for Entanglement-Assisted Communication
Ke Li, Yongsheng Yao
We determine the exact strong converse exponent for entanglement-assisted classical communication of a quantum channel. Our main contribution is the derivation of an upper bound fo…
Operational Interpretation of the Sandwiched Rényi Divergence of Order 1/2 to 1 as Strong Converse Exponents
Ke Li, Yongsheng Yao
We provide the sandwiched Rényi divergence of order , as well as its induced quantum information quantities, with an operational interpretation in the characte…
Reliable Simulation of Quantum Channels: the Error Exponent
Ke Li, Yongsheng Yao
The Quantum Reverse Shannon Theorem has been a milestone in quantum information theory. It states that asymptotically reliable simulation of a quantum channel, assisted by unlimite…
Reliability Function of Quantum Information Decoupling via the Sandwiched Rényi Divergence
Ke Li, Yongsheng Yao
Quantum information decoupling is a fundamental quantum information processing task, which also serves as a crucial tool in a diversity of topics in quantum physics. In this paper,…
Tight Exponential Analysis for Smoothing the Max-Relative Entropy and for Quantum Privacy Amplification
Ke Li, Yongsheng Yao, Masahito Hayashi
The max-relative entropy together with its smoothed version is a basic tool in quantum information theory. In this paper, we derive the exact exponent for the asymptotic decay of t…