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arXiv 1809.09133gr-qcastro-ph.COhep-phhep-th
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相互作用多元宇宙及其对宇宙微波背景的影响

The interacting multiverse and its effect on the cosmic microwave background

Mariam Bouhmadi-López, Manuel Kraemer, João Morais, Salvador Robles-Pérez

摘要:

我们研究了一个玩具模型的多重宇宙组成的规范量子化的宇宙,相互作用的基础上的一个领域理论制定的惠勒-德维特方程的量子水平。这种相互作用导致了单个宇宙演化中暴胀前阶段的出现。我们分析了模型中的标量扰动,并计算了暴胀前相位对这些扰动的功率谱的影响。结果是,在大尺度上存在功率抑制,这可以很好地描述普朗克2018年宇宙微波背景各向异性的数据,因此可以表明观察到的四极不一致的可能解决方案。

英文摘要:

We study a toy model of a multiverse consisting of canonically quantized universes that interact with each other on a quantum level based on a field-theoretical formulation of the Wheeler-DeWitt equation. This interaction leads to the appearance of a pre-inflationary phase in the evolution of the individual universes. We analyze scalar perturbations within the model and calculate the influence of the pre-inflationary phase onto the power spectrum of these perturbations. The result is that there is a suppression of power on large scales, which can describe well the Planck 2018 data for the cosmic microwave background anisotropies and could thus indicate a possible solution to the observed quadrupole discrepancy.

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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