从广义相对论看量子引力
Quantum gravity from general relativity
摘要：
虽然广义相对论是一个成功的预言理论，但它把物质当作经典的而不是量子的。因此，它将不得不被更基本的引力量子理论所取代。试图建立引力的量子理论表明，这样的理论可能会对时空的性质，甚至是命运产生根本性的影响。本文阐明了这个时空问题是什么，并通过三种以广义相对论为优势的量子引力方法来追踪它：半经典引力、因果集理论和圈量子引力。
英文摘要：
Although general relativity is a predictively successful theory, it treats matter as classical rather than as quantum. For this reason, it will have to be replaced by a more fundamental quantum theory of gravity. Attempts to formulate a quantum theory of gravity suggest that such a theory may have radical consequences for the nature, and indeed the fate, of spacetime. The present article articulates what this problem of spacetime is and traces it through three approaches to quantum gravity taking general relativity as their vantage point: semi-classical gravity, causal set theory, and loop quantum gravity.
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。
