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Obtaining the CMB anomalies with a bounce from the contracting phase to inflation

Obtaining the CMB anomalies with a bounce from the contracting phase to inflation

来源:Arxiv_logoArxiv
英文摘要

Recent Planck data show the anomalies of CMB fluctuations on large angular scales, which confirms the early observations by WMAP. We continue studying an inflationary model, in which before the slow roll inflation the universe is in a contracting phase, and fit the model with the Planck data. It is showed that this model may generate not only the power deficit at low-l, but also a large hemispherical power asymmetry in CMB. We also discuss the implication of the result to the eternal inflation scenario.

Zong-Kuan Guo、Yun-Song Piao、Zhi-Guo Liu

10.1103/PhysRevD.88.063539

天文学

Zong-Kuan Guo,Yun-Song Piao,Zhi-Guo Liu.Obtaining the CMB anomalies with a bounce from the contracting phase to inflation[EB/OL].(2013-04-24)[2025-08-02].https://arxiv.org/abs/1304.6527.点此复制

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