5 papers
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…
Exponents for classical-quantum channel simulation in purified distance
Aadil Oufkir, Yongsheng Yao, Mario Berta
We determine the exact error and strong converse exponent for entanglement-assisted classical-quantum channel simulation in worst case input purified distance. The error exponent i…
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…
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,…
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 charac…