Dynamics of Logamediate Inflation

Details Dynamics of Logamediate Inflation Dynamics of Logamediate Inflation

2007-05-30

arxiv.org/abs/0705.4426v2

Phys.Rev.D76:043501,2007

Astronomy and Astrophysics

Astrophysics

7 pages, 5 figures. Extended introduction

Scientific paper

10.1103/PhysRevD.76.043501

A computation of the inflationary observables n_{s} and r is made for `logamediate' inflation where the cosmological scale factor expands as $a=\exp (A(\ln t)^{\lambda})$, and is compared to their predicted values in the intermediate inflationary theory, where $a=\exp (Bt^{f})$. Both versions prove to be consistent with observational measurements of the cosmic background radiation. It is shown that the dynamics of a single inflaton field can be mimicked by a system of several fields in an analogous manner to that created by the joint evolution of the fields in assisted power-law inflation.

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