arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2004.11729math.FA
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Positive operator -值测度与稠密定义算子值框架

Positive operator-valued measures and densely-defined operator-valued frames

Benjamin Robinson, Bill Moran, Doug Cochran

摘要:

在信号处理文献中,框架是用于在希尔伯特空间中执行分析和重构的机制。相比之下,在量子理论中,正算符值测度(POVM)分解希尔伯特空间向量以计算测量概率。框架和它们最常见的推广可以被看作是POVM的产生,但是每一个合理的POVM都是从一种框架中产生的吗?在本文中,我们回答这个问题使用Radon-Nikodym型结果。

英文摘要:

In the signal-processing literature, a frame is a mechanism for performing analysis and reconstruction in a Hilbert space. By contrast, in quantum theory, a positive operator-valued measure (POVM) decomposes a Hilbert-space vector for the purpose of computing measurement probabilities. Frames and their most common generalizations can be seen to give rise to POVMs, but does every reasonable POVM arise from a type of frame? In this paper we answer this question using a Radon-Nikodym-type result.

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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