Suppressing the CMB quadrupole with a bounce from the contracting phase to inflation

By Yun-Song Piao, Bo Feng, Xinmin Zhang. 2003

156 citations recorded by the source corpus.

Recent released WMAP data show a low value of quadrupole in the CMB temperature fluctuations, which confirms the early observations by COBE. In this paper, a scenario in which a contracting phase is followed by an inflationary phase is constructed. We calculate the perturbation spectrum and show that this scenario can provide a reasonable explanation for lower CMB anisotropies on large angular scales.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics, Oceanography

View Paper: https://www.semanticscholar.org/paper/08388200b3b899c24a3ab2a3ae2548433726603e

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Citations in the corpus

Non-singular cosmology in a model of non-relativistic gravity (2009, methodology): “The scenario of bouncing cosmology has been investigated in models motivated by various approaches to quantum gravity [18–23], and analyzed using effective field techniques by introducing energy-condition-violating matters [11, 24–26], while the generation of perturbation was studied in [27–34] (and”
Exploring bouncing cosmologies with cosmological surveys (2014, background): “[29] Y.”
Planck intermediate results: LI. features in the cosmic microwave background temperature power spectrum and shifts in cosmological parameters (2016, unknown): “Despite interpretation of the deficit from different perspectives (e.g. Contaldi et al. 2003; Piao et al. 2004; Iqbal et al. 2015; Chen & Lin 2016; Cai et al. 2015a), up until now, its effect on the parameter shifts has not been thoroughly explored.”