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arXiv · 1312.2416

Large-scale structure in superfluid Chaplygin gas cosmology

Rong-Jia Yang
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Abstract

We investigate the growth of large-scale structure in the superfluid Chaplygin gas (SCG) model. Both linear and non-linear growth, such as $\sigma_8$ and the skewness $S_3$, are discussed. We find the growth factor of SCG reduces to the EdS case at early times while differs from the $\Lambda$CDM case in the large $a$ limit. We also find there will be much stricture growth on large scales in the SCG scenario than in $\Lambda$CDM and the variations of $\sigma_{8}$ and $S_3$ between SCG and $\Lambda$CDM can not be discriminated.

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Rong-Jia Yang. 2013-12-09. Large-scale structure in superfluid Chaplygin gas cosmology. https://doi.org/10.1103/physrevd.89.063014

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