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arXiv 0712.2265quant-ph
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检验空间的de Finetti定理

The de Finetti theorem for test spaces

Jonathan Barrett, Matthew Leifer

摘要:

本文证明了测试空间上可交换态序列的de Finetti定理,其中测试空间是经典概率论的样本空间和量子理论的Hilbert空间的推广.标准的经典和量子de Finetti定理作为特例得到。通过在测试空间框架中工作,阐明了这些定理存在的共同特征。此外,测试空间框架是一般的,足以暗示一个经典过程的de Finetti定理。最后,我们讨论的方式,我们的假设可能会失败,导致概率模型,没有一个de Finetti定理。

英文摘要:

We prove a de Finetti theorem for exchangeable sequences of states on test spaces, where a test space is a generalization of the sample space of classical probability theory and the Hilbert space of quantum theory. The standard classical and quantum de Finetti theorems are obtained as special cases. By working in a test space framework, the common features that are responsible for the existence of these theorems are elucidated. In addition, the test space framework is general enough to imply a de Finetti theorem for classical processes. We conclude by discussing the ways in which our assumptions may fail, leading to probabilistic models that do not have a de Finetti theorem.

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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