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首页> 外文期刊>Journal for general philosophy of science >Spacetime in String Theory: A Conceptual Clarification
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Spacetime in String Theory: A Conceptual Clarification

机译:弦理论中的时空:概念澄清

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摘要

In this paper, some conceptual issues are addressed in order to make sense of what string theory is supposed to tell us about spacetime. The dualities in string theory are used as a starting point for our argumentation. We explore the consequences of a standard view towards these dualities, namely that the dual descriptions represent the same physical situation. Given this view, one has to understand string theory in a manner such that what counts as physical spacetime is based only on the shared physical content—or common core—of the dual descriptions. In general such a spatiotemporal picture does not have to agree with, or be similar to, any of the ones suggested by naïve readings of the dual descriptions. However, in certain regimes or limits, one or the other of the initial dual descriptions may give a good effective description of physical spacetime.
机译:在本文中,解决了一些概念性问题,以便弄清楚什么弦理论应该告诉我们有关时空的知识。弦论的对偶性被用作我们论证的起点。我们探讨了对这些二元性的标准观点的后果,即,二元描述代表了相同的身体状况。鉴于这种观点,人们必须以某种方式理解字符串理论,以至于什么算作物理时空仅基于双重描述的共享物理内容(或公共核心)。通常,这样的时空图不必与对双重描述的幼稚读物所暗示的任何景象相一致或相似。但是,在某些情况或限制下,最初的双重描述中的一个或另一个可能会很好地描述物理时空。

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