纯态和混合态
Pure and mixed states
摘要：
我们提出了一个审查的概念，纯态和混合物的数学概念，适用于经典和量子物理理论，以及任何其他理论依赖于统计描述。在这里，国家将提出的期望值在适当的代数观测，在一种方式，为非专业读者;因此，基本文献的主题将提供。我们将展示一些例子，并讨论它们的含义和影响。我们将举一个例子，当普朗克常数趋于零时，纯量子态收敛到粒子的经典混合态。
英文摘要：
We present a review on the notion of pure states and mixtures as mathematical concepts that apply for both classical and quantum physical theories, as well as for any other theory depending on statistical description. Here, states will be presented as expectation values on suitable algebras of observables, in a manner intended for the non-specialist reader; accordingly, basic literature on the subject will be provided. Examples will be exposed together with a discussion on their meanings and implications. An example will be shown where a pure quantum state converges to a classical mixture of particles as Planck's constant tends to zero.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
