This article consists of a very short introduction to classical and quantum information theory. Basic properties of the classical Shannon entropy and the quantum von Neumann entropy are described, along with related concepts such as classical and quantum relative entropy, conditional entropy, and mutual information. A few more detailed topics are considered in the quantum case.

中文翻译：

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信息理论导论

本文包括对经典和量子信息理论的简短介绍。描述了经典的Shannon熵和量子von Neumann熵的基本性质，以及相关概念，例如经典和量子相对熵，条件熵和互信息。在量子情况下，将考虑一些更详细的主题。