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arXiv 2004.03174gr-qchep-thphysics.hist-ph
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量子引力中的空间、时间和物质

Space, Time, Matter in Quantum Gravity

Claus Kiefer

摘要:

空间、时间和物质的概念在任何引力场理论中都是至关重要的。在这里,我将讨论这些概念在引力的量子理论中可能扮演的角色。具体来说,我将集中在最保守的方法,这是量子几何动力学。事实证明,时空在最基本的层面上是不存在的,只有在适当的限度内才会出现。人们期望物质的动力学只能从所有相互作用的基本量子理论中理解。

英文摘要:

The concepts of space, time, and matter are of central importance in any theory of the gravitational field. Here I discuss the role that these concepts might play in quantum theories of gravity. To be concrete, I will focus on the most conservative approach, which is quantum geometrodynamics. It turns out that spacetime is absent at the most fundamental level and emerges only in an appropriate limit. It is expected that the dynamics of matter can only be understood from a fundamental quantum theory of all interactions.

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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