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arXiv 2009.07555physics.hist-phgr-qc
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决定论与广义相对论

Determinism and general relativity

Chris Smeenk, Christian Wuthrich

AI总结:

本文比较哲学与物理学视角,探讨广义相对论中决定论的命运,分析全局双曲性作为决定论必要条件应通过规定、较弱假设或超出GR的物理来确立。

摘要:

我们研究了广义相对论(GR)中决定论的命运,将哲学家的论述与物理学家的适定初值表述进行了比较。决定论的命运与时空“物理上合理”意味着什么这一问题交织在一起。一个核心关注点是全局双曲性的地位,这被认为是GR中决定论的必要条件。尽管全局双曲性可能并非对所有物理上合理的模型都成立,我们分析了全局双曲性是否应(i)通过规定强加;(ii)从较弱假设中建立,如宇宙监督假设定理中的情形;或(iii)由超出GR的物理学来证明其合理性。

英文摘要:

We investigate the fate of determinism in general relativity (GR), comparing the philosopher's account with the physicist's well-posed initial value formulations. The fate of determinism is interwoven with the question of what it is for a spacetime to be `physically reasonable'. A central concern is the status of global hyperbolicity, a putatively necessary condition for determinism in GR. While global hyperbolicity may fail to be true of all physically reasonable models, we analyze whether global hyperbolicity should be (i) imposed by fiat; (ii) established from weaker assumptions, as in cosmic censorship theorems; or (iii) justified by beyond-GR physics.

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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