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One-Shot Trade-Off Bounds for State Redistribution of Classical-Quantum Sources

机译:对经典量子资源的状态重新分配的一次权衡取舍边界

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We consider state redistribution of a "hybrid" information source that has both classical and quantum components. The sender transmits classical and quantum information at the same time to the receiver, in the presence of classical and quantum side information both at the sender and at the decoder. The available resources are shared entanglement, and noiseless classical and quantum communication channels. We derive one-shot direct and converse bounds for these three resources, represented in terms of the smooth conditional entropies of the source state. The two bounds coincide in the asymptotic limit of infinitely many copies and vanishingly small error. Various coding theorems for two-party communication tasks are obtained by reduction from our results.
机译:我们考虑具有经典和量子成分的“混合”信息源的状态重新分布。在发送器和解码器都存在经典和量子辅助信息的情况下,发送器将经典和量子信息同时发送到接收器。可用资源是共享纠缠以及无噪声的经典和量子通信通道。我们用源状态的光滑条件熵表示这三种资源的一键正向和逆向边界。这两个边界在无穷多个副本和逐渐消失的小误差的渐近极限内重合。通过减少我们的结果,可以获得用于两方通信任务的各种编码定理。

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