量子通信理论的数学方法
Mathematical Techniques for Quantum Communication Theory
摘要：
我们提出了解决量子通信理论中两个密切相关的问题的数学技术。特别是，我们给出了一个统计动机的推导的Bures-Uhlmann测量的可扩展性的密度算子，我们提出了一个简化的证明的Holevo上界的量子通信信道的互信息。这两种推导都产生了新的量子测量。
英文摘要：
We present mathematical techniques for addressing two closely related questions in quantum communication theory. In particular, we give a statistically motivated derivation of the Bures-Uhlmann measure of distinguishability for density operators, and we present a simplified proof of the Holevo upper bound to the mutual information of quantum communication channels. Both derivations give rise to novel quantum measurements.
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