Wiggles in the cosmic microwave background radiation: echoes from non-singular cyclic-inflation

Details Wiggles in the cosmic microwave background radiation: echoes from non-singular cyclic-inflation Wiggles in the cosmic microwave background radiation: echoes from non-singular cyclic-inflation

2010-03-16

arxiv.org/abs/1003.3206v3

Phys.Rev.D82:123517,2010

Physics

High Energy Physics

High Energy Physics - Theory

Computational details and a figure added

Scientific paper

10.1103/PhysRevD.82.123517

In this paper we consider a unique model of inflation where the universe undergoes rapid asymmetric oscillations, each cycle lasting millions of Planck time. Over many-many cycles the space-time expands to mimic the standard inflationary scenario. Moreover, these rapid oscillations leave a distinctive periodic signature in ln(k) in the primordial power spectrum, where k denotes the comoving scale. The best fit parameters of the cyclic-inflation model provides a very good fit to the 7-year WMAP data.

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