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arXiv 1306.3076gr-qcmath-phmath.MPquant-ph
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关于量子引力逻辑的几点注记

Some Remarks on the Logic of Quantum Gravity

Andreas Doering

摘要:

我们讨论了任何研究量子引力的方法都必须面对的一些概念问题。特别是,有人认为,人们必须找到一个理论,可以解释在现实主义的方式,因为理论与工具主义的解释是有问题的几个众所周知的原因。由于希尔伯特空间形式主义几乎不可避免地将工具主义解释强加于我们,我们建议量子引力理论不应基于希尔伯特空间形式主义。我们简要地概述了拓扑方法,它利用了与量子系统相关的拓扑的内部逻辑,并带有自然的(新)现实主义解释。最后,对系统逻辑与元逻辑的关系作了一些评述。

英文摘要:

We discuss some conceptual issues that any approach to quantum gravity has to confront. In particular, it is argued that one has to find a theory that can be interpreted in a realist manner, because theories with an instrumentalist interpretation are problematic for several well-known reasons. Since the Hilbert space formalism almost inevitably forces an instrumentalist interpretation on us, we suggest that a theory of quantum gravity should not be based on the Hilbert space formalism. We briefly sketch the topos approach, which makes use of the internal logic of a topos associated with a quantum system and comes with a natural (neo-)realist interpretation. Finally, we make some remarks on the relation between system logic and metalogic.

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