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arXiv quant-ph/9912031quant-ph
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退相干历史与现实主义

Decoherent Histories and Realism

Angelo Bassi, GianCarlo Ghirardi

摘要:

我们重新考虑退相干历史方法的量子力学,我们分析了一些问题有关的解释,据我们所知,还没有得到充分的澄清,其支持者。我们提出了一些假设,在我们看来,是必要的一个现实的解释的概率,形式主义重视退相干的历史。我们证明,这样的假设,除非一个限制的集合的退相干家庭,可以考虑,导致逻辑矛盾。我们将遵循的推理路线在概念上不同于其他已经提出的论点,这些论点已经被退相干历史方法的支持者所拒绝。结论是,退相干历史的方法,被认为是一个有趣的现实替代正统的量子力学的解释,需要确定一个数学上精确的标准,以表征一组适当的退相干家庭,不会引起任何问题。

英文摘要:

We reconsider the Decoherent Histories approach to Quantum Mechanics and we analyze some problems related to its interpretation which, according to us, have not been adequately clarified by its proponents. We put forward some assumptions which, in our opinion, are necessary for a realistic interpretation of the probabilities that the formalism attaches to decoherent histories. We prove that such assumptions, unless one limits the set of the decoherent families which can be taken into account, lead to a logical contradiction. The line of reasoning we will follow is conceptually different from other arguments which have been presented and which have been rejected by the supporters of the Decoherent Histories approach. The conclusion is that the Decoherent Histories approach, to be considered as an interesting realistic alternative to the orthodox interpretation of Quantum Mechanics, requires the identification of a mathematically precise criterion to characterize an appropriate set of decoherent families which does not give rise to any problem.

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