Structure Formation with Two Periods of Inflation: Beyond PLaIn $Lambda$CDM. (arXiv:1905.13580v1 [astro-ph.CO])
<a href="http://arxiv.org/find/astro-ph/1/au:+Enqvist_K/0/1/0/all/0/1">Kari Enqvist</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Sawala_T/0/1/0/all/0/1">Till Sawala</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Takahashi_T/0/1/0/all/0/1">Tomo Takahashi</a>
We discuss structure formation in models with a spectator field in
small-field inflation which accommodate a secondary period of inflation. In
such models, subgalactic scale primordial fluctuations can be much suppressed
in comparison to the usual power-law $Lambda$CDM model while the large scale
fluctuations remain consistent with current observations. We discuss how a
secondary inflationary epoch may give rise to observable features in the small
scale power spectrum and hence be tested by the structures in the Local
Universe.
We discuss structure formation in models with a spectator field in
small-field inflation which accommodate a secondary period of inflation. In
such models, subgalactic scale primordial fluctuations can be much suppressed
in comparison to the usual power-law $Lambda$CDM model while the large scale
fluctuations remain consistent with current observations. We discuss how a
secondary inflationary epoch may give rise to observable features in the small
scale power spectrum and hence be tested by the structures in the Local
Universe.
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