Generalised Scalar Field Potentials and Inflation

Details Generalised Scalar Field Potentials and Inflation Generalised Scalar Field Potentials and Inflation

1995-01-23

arxiv.org/abs/astro-ph/9501086v1

Phys.Rev. D51 (1995) 6757-6763

Astronomy and Astrophysics

Astrophysics

19 Pages, LATEX.

Scientific paper

10.1103/PhysRevD.51.6757

We investigate the range of inflationary universe models driven by scalar fields possessing a general interaction potential of the form $V(\phi) = V_0 \phi^n \exp(-\lambda \phi^m)$. Power-law, de Sitter and intermediate inflationary universes emerge as special cases together with several new varieties of inflation. Analysing the behaviour of these models at the extrema of $\phi$ we derive sufficient constraints on the $m$ - $n$ parameter space such that inflation may occur as both an early and late-time phenomenon. We also compute the scalar and tensor perturbations produced in the model and compare these results with recent observations.

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