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arXiv 1504.07559gr-qc
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圈量子宇宙学:从暴胀前动力学到观测

Loop quantum cosmology: From pre-inflationary dynamics to observations

Abhay Ashtekar, Aurelien Barrau

摘要:

普朗克合作为我们提供了关于早期宇宙的丰富信息,许多新的观测任务将很快进一步阐明似乎存在于最大角尺度上的“异常”。从量子引力的角度来看,人们很自然地会问,这些令人困惑的特征是否可以追溯到普朗克尺度物理学。圈量子宇宙学提供了一个很有前途的途径来探索这个问题,因为它的自然解决方案的大爆炸奇点。由于过去十年的进展,该理论已经足够成熟,可以对其前暴胀动力学的现象学后果进行具体计算。在这篇文章中,我们总结了量子引力和观测之间的双向对话的现状。

英文摘要:

The Planck collaboration has provided us rich information about the early universe, and a host of new observational missions will soon shed further light on the `anomalies' that appear to exist on the largest angular scales. From a quantum gravity perspective, it is natural to inquire if one can trace back the origin of such puzzling features to Planck scale physics. Loop quantum cosmology provides a promising avenue to explore this issue because of its natural resolution of the big bang singularity. Thanks to advances over the last decade, the theory has matured sufficiently to allow concrete calculations of the phenomenological consequences of its pre-inflationary dynamics. In this article we summarize the current status of the ensuing two-way dialog between quantum gravity and observations.

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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