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arXiv 2302.12243quant-ph
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双量子仪器与亚可观测量

Dual Quantum Instruments and Sub-observables

Stanley Gudder

摘要:

我们介绍了双仪器和亚观测量的概念。我们表明,虽然一个双仪器测量一个独特的可观察,它决定了许多子可观察。我们定义了一个唯一的最小扩展的子观测到一个观察,并考虑序列产品和条件的子观测。对次可观测效应代数进行了刻画和研究。此外,这些效果代数的凸性被认为是。讨论了仪器的序贯乘积。这些概念以许多文书为例加以说明。特别是,我们讨论吕德斯,霍莱罗和恒态仪器。提出了今后研究的各种设想。

英文摘要:

We introduce the concepts of dual instruments and sub-observables. We show that although a dual instruments measures a unique observable, it determines many sub-observables. We define a unique minimal extension of a sub-observable to an observable and consider sequential products and conditioning of sub-observables. Sub-observable effect algebras are characterized and studied. Moreover, the convexity of these effect algebras is considered. The sequential product of instruments is discussed. These concepts are illustrated with many examples of instruments. In particular, we discuss Lüders, Holero and constant state instruments. Various conjectures for future research are presented.

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。

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